3D Printing InfoPrinter comparison
Elegoo Centauri Carbon 2 vs Creality K2 SE
Compare hardware, build volume, printing specifications, dated prices and sources.
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| Property | Elegoo Centauri Carbon 2COREXY | Creality K2 SECOREXY |
|---|---|---|
| Identity | ||
| Brand | ELEGOO | Creality |
| Class | COREXY | COREXY |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | ELEGOO Centauri Carbon 2 Combo. Internal ids: slicer model_id: "Elegoo-CC2", printer_model: Elegoo Centauri Carbon 2, machine setting_id: ECC204 (0.4 nozzle), filament suffix @ECC2; firmware release folder printer-realase-2602101855; mainboard part number EF-M5-V1.0.073. Manual PDF title block: 11.201.0124B Centauri Carbon 2 Combo安装说明书-EN-V1.1[1][2] | Creality K2 SE; marketed "K2 SE Open-frame Multicolor 3D Printer"; sold as bare printer and as "K2 SE Combo" (with 1x CFS). Internal ID Creality_K2_SE[3] |
| Release date (announcement and actual shipping) | Announced 2026-01-19; on sale 2026-01-26, 09:00 EST / 17:00 CET.[4][5][6][7] | Announced/first shown: IFA Berlin, Sept 2025 (month inferred from IFA's fixed early-September calendar — All3DP says only "the IFA Berlin consumer technology show last year"). Shipping to customers by late Dec 2025[8] |
| Launch MSRP (USD) | US $449.00. Regional launch MSRPs: €439, £339, C$619, A$999, ¥79,999[9][10] | Not published[11] |
| Street price (USD; dated snapshot per entry) | $379.00 USD displayed sale price on us.elegoo.com (badged −16 % against $449.00 list) as of 2026-08-19. The same page's machine-selector chip and the Shopify products.json variant both read $399.00 (compare-at $449.00). Certified pre-owned: $375.99. Amazon B0G4TPZPZM: $449 per Tom's price widget (Feb 2026) and $500 per Notebookcheck (Mar 2026)[2][12][13][14] | Creality store: $279 base / $499 top option (two JSON-LD offers, SKUs 1002110184 and 1002110173). Creality's K2-series collection page renders the tile as "K2 SE 3D Printer — From 279.00", so $279 is the bare printer and $499 the Combo. Amazon US: $248.99 (17% off ≈$299 list). Tom's Hardware: "under $250" (-17%). Notebookcheck (EU): EUR 669.99 list / EUR 479 deal — *paid advertorial, see note*[15] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Five live Centauri siblings on us.elegoo.com (2026-08-19): (1) Centauri Carbon 2 Combo $399/$379 — printer + CANVAS; 500×480×743 mm, 19.35 kg. (2) Centauri Carbon 2 (non-Combo) $349 — *identical printer, no CANVAS*; 398×404×490 mm, 17.5 kg. (3) Centauri 2 Combo $329. (4) Centauri 2 $279. (5) Centauri Carbon (CC1) $419.99. Plus ELEGOO × emoji® CC2 Combo $449 (cosmetic edition). CANVAS standalone: $150 (with cover) / $120 (without); CC2-non-Combo + CANVAS-no-cover bundle $389[13][16][17] | K2 SE 220x215x245 (open frame, no aux fan, no filtration, nozzle_volume 178, creality_flush_time 135) - K2 SE 4C 220x215x245 but 355x355x715 mm / 11.64 kg / 4 integrated slots - K1 SE 220x220x250 (nozzle_volume 200, flush 119; also a K1 SE_CFS-C variant) - K1C 220x220x250 (aux fan, brass nozzle, 600 mm/s) - K2 260x260x260 (aux fan 1, air filtration 1, nozzle_volume 183, flush 86) - K2 Pro 300x300x300 (heated chamber, bed 110 C) - K2 Plus 350x350x350 (heated chamber, max_accel 30000)[18] |
| Market position: superseded? successor announced? | Current flagship of the Centauri line; no CC3 or CC2 successor announced. Elegoo has widened the line *below* it (Centauri 2 / Centauri 2 Combo, Jun–Jul 2026) and continues shipping CC2 OTA firmware (latest catalogued v02.00.02.00, 2026-05-28). Benchmarked by reviewers against Bambu Lab P1S Combo ($549), Bambu P2S Combo ($799), Creality K2 Combo ($549), Creality SPARKX i7 ($399) and Anycubic Kobra X[13][19] | Cheapest member of the K2 family ($279 base, vs K2 $399 / K2 Pro $599 / K2 Plus $999 / K2 Plus Combo $1,199 on Creality's own K2-series collection page, 2026-08-19); entry-level open-frame multicolor. No successor or discontinuation announced, but it is no longer the newest K2-family listing: Creality now also lists a "K2 SE 4C" (finding 5)[20] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | Advertised 256 × 256 × 256 mm; platform 260 × 260 mm. Firmware agrees exactly: x_range=0,256, y_range=0,256, z_range=0,256. Axis travel exceeds the print area: X position_min=-2.1 → position_max=256.5; Y -2.1 → 270.0; Z -10 → 258.0. Slicer printable_area 256×256, printable_height 256, with a bed_exclude_area of 246×0 → 256×20 mm[21] | 220 x 215 x 245 mm advertised. Vendor profile: printable_area = 0x0,220x0,220x215,0x215, printable_height = 245[22] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | Combo: 500 × 480 × 743 mm (= 19.68 × 18.89 × 29.25 in). Bare CC2: 398 × 404 × 490 mm. Package: Combo 490 × 495 × 560 mm (gross 23.8 kg); bare CC2 465 × 460 × 560 mm; CC1 480 × 475 × 560 mm. Extra clearance needed to the right for four side-mounted spool holders and above for the tophat[23] | Manual: 355 x 355 x 482 mm. Creality support page: "Printer Dimension 355*355*482 mm". Store spec table: "Printer Dimensions 834 x 355 x 482 mm" *and* "Combo Dimensions 834 x 355 x 482 mm"[24] |
| Net weight (kg) | Combo: 19.35 kg (gross 23.8 kg). Bare CC2: 17.5 kg (gross 20.4 kg)[25] | 10.58 kg[26] |
| Frame construction & material | Integrated die-cast aluminium frame and chassis, SPCC steel panels, injection-moulded covers; metal side panels and a glass front door[2] | "frame parts die-cast from aerospace aluminum alloy... also corner gussets and crossbeams to reinforce the frame"[27] |
| Enclosure: open / enclosed; panel material; door/lid | Fully enclosed. Metal side panels + glass front door + removable "tophat" lid (acrylic/Perspex) that also covers the CANVAS module; a thermal cover ships in the box. Rear carries a servo-actuated exhaust grille and an air filter[28] | Open frame — no walls, no door, no lid[29] |
| Passive chamber temperature reached (if enclosed; measured values preferred) | MEASURED: peak ~47 °C, sustained ~45 °C, from a 17 °C ambient, with the tall cover fitted. Aurora Tech placed an independent thermometer inside the chamber during a standard-ABS print in a 17 °C garage: the internal temperature reaches ~35 °C shortly after the print starts, exceeds 40 °C after about an hour, peaks at ~47 °C, then settles at ~45 °C for the remainder as the part grows and the bed descends. On a separate, smaller PA-CF job the enclosure read ~41 °C near the end. Aurora Tech is based in Danville, California, so this was obtained on 110-120 V mains, i.e. on the ~250 W bed (see I2), which makes the figure directly applicable to US buyers. Firmware-verified surrogate, consistent with the measurement: a chamber thermistor exists ([ztemperature_sensor box], NTC 100 K B3950, max_temp=110, over-temp cutoff ot_box=100) and the chamber fan is thermostatically staged at T0=30, T1=38, T2=37, T3=40, T4=45 C. An owner reports being able to request a slicer-side chamber 50 C target / 45 C minimum[30][31] | Not applicable — open frame, no chamber. Vendor profile support_chamber_temp_control = 0[32] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY — kinematics=corexy. Fixed gantry; bed moves in Z[33] | CoreXY (moving gantry, Z-moving bed)[34] |
| X-axis guide type (rods / linear rails / V-wheels; size) | Ø8 mm hardened smooth rods with LM8LUU / LMS8LUU linear ball bearings. Not linear rails, not V-wheels[2] | Smooth/optical shafts, 2 off ("X-axis optical shaft 1", "X-axis optical shaft 2"). Diameter[35] |
| Y-axis guide type | Same as X: Ø8 mm smooth rods + LM8LUU/LMS8LUU linear bearings[36] | Smooth/optical shafts, 2 off ("Y-axis optical shaft 1", "Y-axis optical shaft 2"). Diameter[37] |
| Z-axis: leadscrew count & type, sync mechanism, anti-backlash | 3 lead screws + 3 linear guide rods, all driven from a single Z stepper via a belt. Firmware declares exactly one [stepper_z]: rotation_distance=8 (8 mm Z per motor rev), run_current=1.0, position_min=-10, position_max=258. Z endstop is a physical optical limit switch (endstop_pin=^PB10), *plus* the load-cell probe for Z-zero. No anti-backlash nut documented[1] | Manual's lubrication diagram labels 3 lead screws ("Lead screw 1/2/3") and 3 Z optical shafts ("Z-axis optical shaft 1/2/3"). Motor count and sync mechanism[37] |
| Belts (type, width, e.g. Gates?) | 2M-pitch (2 mm), 6 mm-wide open-ended timing belt — BOM part 2M-W6开口同步带 — with dedicated XY belt-tensioning springs (X/Y轴同步带张紧弹簧), tensioner-idler brackets (XY轴皮带张紧惰轮支架) and belt clamps (XY皮带固定卡片). No Gates branding in any source. Firmware-consistent: rotation_distance=39.872 on X and Y[38] | Not published[39] |
| Stepper motors (frame size, step angle, brand if known) | X and Y: two 42 × 60 mm NEMA 17 (BOM 42-60步进电机; Elegoo: "Dual 4260 stepper motors independently drive the X and Y axes"). Extruder: round 36 × 20 mm NEMA-14-class, P/N BJY36D12-04V28, Shenzhen Keli Motor Ltd (BOM 36x20圆形步进电机). CANVAS: 4 × permanent-magnet steppers with worm gearboxes, Shenzhen Wanzhida Motor. Step angle: full_steps_per_rotation is absent from the config → Klipper default 200 steps/rev = 1.8°[2][40][41] | Extruder: SKU 4004100088 K2 SE Extruder Stepper Motor_36-20_E Axis. X/Y/Z: store lists only "XYE Motor: Step motors"[42] |
| Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?) | TMC2209 throughout, UART, with sensorless homing on X and Y. X: uart_pin=PE6, tx_pin=PE7, run_current=1.2, hold_current=0.8, driver_SGTHRS=130, diag_pin=PF0, endstop_pin=tmc2209_stepper_x:virtual_endstop. Y: same currents, SGTHRS=130, diag_pin=PF3. Z: run_current=1.0, SGTHRS=120, but uses the physical endstop. Extruder (on toolhead MCU): uart_pin=toolhead:PB11, uart_address=2, run_current=0.8, hold_current=0.2. sense_resistor=0.1 throughout. CANVAS uses 4 × AT8833 (DRV8833 clone) — not TMC[1][43] | Not published[44] |
| Microstepping / interpolation settings (firmware evidence) | Microsteps=16 on every axis, with interpolate=True on every TMC2209 (1/16 commanded, interpolated to 1/256 in-driver)[45] | Not published[46] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | ≤500 mm/s[47] | <= 500 mm/s[48] |
| Recommended/typical print speed | Elegoo's own spec table says "Recommended 250 mm/s". Reviewer practice: Tom's ran 160 mm/s avg (multicolour PLA), 150 mm/s (PETG), 100 mm/s (PAHT-CF and PC), 50 mm/s (TPU). 3DwithUS used 300 mm/s inner / 250 mm/s outer walls[49] | Vendor default profile "0.20mm Standard @Creality K2 SE 0.4 nozzle": outer_wall_speed 200, inner_wall_speed 300, sparse_infill_speed 270, internal_solid_infill_speed 250, top_surface_speed 150, initial_layer_speed 60, bridge_speed 20[50] |
| Max travel speed | 500 mm/s — max_velocity=500 is a global ceiling covering travel; slicer sets machine_max_acceleration_travel=20000. Z far slower: max_z_velocity=50[51] | Travel_speed = 500 mm/s (process); machine ceiling machine_max_speed_x/y = 800 mm/s[52] |
| Max acceleration (claimed, mm/s²) | 20 000 mm/s² maximum; 10 000 mm/s² "Default Acceleration"[53] | Store spec table & hero: <= 20000 mm/s2; official support page spec table: <= 2000 mm/s2[54] |
| Firmware velocity limit (`max_velocity` or Marlin equivalent — exact value) | Max_velocity= 500; max_z_velocity= 50[55] | Machine_max_speed_x = 800, machine_max_speed_y = 800, machine_max_speed_z = 30, machine_max_speed_e = 100 (mm/s)[56] |
| Firmware acceleration limit (`max_accel` / `DEFAULT_MAX_ACCELERATION` — exact value) | Max_accel= 20000; max_z_accel= 1200. Slicer: machine_max_acceleration_extruding=20000, machine_max_acceleration_z=500. Start g-code clamps outer walls with M204 S{min(20000, max(1000, outer_wall_acceleration))}[57] | Machine_max_acceleration_x = 20000, _y = 20000, _z = 500, _e = 5000, _extruding = 20000, _travel = 20000, _retracting = 5000 (mm/s2). Process defaults: default_acceleration 10000, travel_acceleration 10000, outer_wall_acceleration 5000, inner_wall_acceleration 5000, top_surface_acceleration 2000, initial_layer_acceleration 1000[58] |
| Jerk / square-corner-velocity setting (exact value) | Square_corner_velocity=9. (9 mm/s, ~1.8× Klipper's 5.0 default). Slicer mirrors it: machine_max_jerk_x = machine_max_jerk_y = 9, machine_max_jerk_e = 1[59] | Machine_max_jerk_x = 20, _y = 20, _z = 5, _e = 10. Process: default_jerk 10, outer_wall_jerk 8, top_surface_jerk 10, travel_jerk 10[58] |
| Max volumetric flow claimed (mm³/s) | The vendor slicer profiles are the operative claim — PLA 21, ABS 18, PC 16, PLA-CF 16, PETG-CF 12, PETG 11, PET-CF 8, PAHT-CF 6, TPU 95A 3.2 mm³/s. Elegoo publishes no headline flow figure[60] | No headline claim published. Vendor per-filament caps (filament_max_volumetric_speed): Hyper PLA 23 (this is the machine's *default* filament), Hyper ABS 23, Generic PLA 14, Generic ABS 12, Generic ASA 12, HP-ASA 12, Generic PETG 12, Generic TPU 3, HP-TPU 3 mm3/s[61] |
| Max volumetric flow independently measured (mm³/s, method) | Not published[62] | Not published[63] |
| Real-world speed benchmarks (e.g. Benchy time from third-party tests) | No rigorously-specified Benchy exists for the CC2. Actual data points: CreativeBloq ~40 min for a colour-split multi-part Benchy; 3DwithUS ~2 h for a 4-colour Benchy and ~35 min for the built-in single-colour "Little Buddha"; VoxelMatters "just over 20 minutes" for the *same* Buddha; Tom's 4 h 55 min / 7 Baby Chameleons @0.2 mm, 160 mm/s avg; 4 h 20 min PETG Slinky @0.2 mm, 150 mm/s; 6 h 06 min / 7 PC utility knives @0.2 mm, 100 mm/s; 2 h 12 min PAHT-CF part @0.2 mm, 100 mm/s. Aggregator smith3d quotes "~31 min at 500 mm/s / ~48 min at 300 mm/s" and an "18 min 19 s speed-optimised Benchy on the Centauri platform" — provenance unverifiable, and "the Centauri platform" may mean CC1[64][49][65][66] | Not established[67] |
| Vibration Compensation / Input Shaping | ||
| Input shaping supported? Implementation (Klipper IS / Marlin ZV / proprietary) | Yes — stock Klipper-style [input_shaper] + [resonance_tester] in Elegoo's C++ Klipper re-implementation. Marketed as "Active Vibration Compensation"[2] | Yes — "Input Shaping: Yes"; implementation is Klipper input shaping (gcode_flavor: klipper)[68] |
| Accelerometer: present? model (ADXL345 / LIS2DW12 / …), location(s), count | One accelerometer: a single [lis2dw] on the toolhead, software-SPI (cs_pin=toolhead:PA4, sclk=PA5, mosi=PA7, miso=PA6, 5 MHz, axes_map=x,y,z). Teardown identifies it as LIS2DW12 on SPI1 with labelled test points CS/SCLK/MOSI/MISO = PA4/PA5/PA7/PA6 — an exact pin-for-pin match to the config[40] | Presence, model, count and location all unpublished[69] |
| Calibration mode: automatic per-print / user-run routine / factory-fixed values | User/self-check-run routine that stores results — NOT per print. [resonance_tester] carries shaper_calibrate_gcode=G28\n, i.e. a discrete calibration action. The per-print machine_start_gcode contains BED_MESH_CALIBRATE but no shaper calibration. Notebookcheck: "the one click calibration takes care of optimizing the nozzle, bed level, and vibration compensation. The whole calibration process takes about 26 to 27 minutes"[14] | User-run routine, recommended every 300 cumulative print hours ("Optimization of vibration veins", listed alongside "Auto Leveling" and "Equipment self-test")[70] |
| Shaper type & default frequencies (firmware evidence preferred) | Shaper_type_x = mzv, shaper_freq_x = 53.6; shaper_type_y = mzv, shaper_freq_y = 44.8; damping_ratio_x = damping_ratio_y = 0.1. Search space: min_freq=5, max_freq=90, accel_per_hz=100, hz_per_sec=2, max_smoothing=1, probe point 128,128,5[71] | Not published[72] |
| Effectiveness evidence (ringing/VFA tests from reviews) | . TechRadar's structured test scores XY resonance 2.5 / 5 and Z-axis alignment 2.5 / 5 — by far the weakest two of its eight sub-scores. Against that, Tom's saw "no color bleeding using the default purge values" on a 7-part multicolour plate; CreativeBloq: "layer lines are barely visible, corners and edges are sharp" and "there were very few of those annoying wispy bits of filament you can get when the nozzle lifts off"; 3DwithUS: "All lettering came out sharp and clearly defined"[73] | Not published[74] |
| Extrusion Pressure Control | ||
| Pressure advance (Klipper) / linear advance (Marlin) supported? | Yes — Klipper-style pressure advance[75] | Yes — Klipper pressure advance; every K2 SE filament profile carries a pressure_advance value, and 6 of the 9 profiles also set enable_pressure_advance: 1[76] |
| Enabled by default? Factory value? (firmware evidence) | Yes. Firmware default pressure_advance=0.04. The slicer then overrides it per material: PLA/ABS 0.04, PC 0.052, PAHT-CF 0.052, TPU 95A 0.1[77] | NOT enabled in the machine's default filament profile. enable_pressure_advance is 0 in Hyper PLA (which the machine profile names as its default_filament_profile), 0 in Hyper ABS and 0 in HP-TPU; it is 1 in Generic PLA / ABS / ASA / PETG / TPU and HP-ASA. Factory pressure_advance values (present in every profile, active only where the flag is 1): Hyper PLA 0.05, Hyper ABS 0.02, Generic PLA 0.04, Generic ABS/ASA/HP-ASA 0.044, Generic PETG 0.08, Generic/HP TPU 0.4[78] |
| Auto-calibration for PA/LA? How does it work? | Marketed, but no per-print PA routine exists in the shipped g-code. machine_start_gcode contains no PA calibration call; there is no PA macro in [g180]. Elegoo's product page nonetheless advertises "Pressure Advance Calibration" as a headline feature[2] | Not published[79] |
| Any physical nozzle pressure / load-cell extrusion sensing? | No. A load cell exists ([load_cell_probe], CS1237 24-bit ADC on the bed MCU, 4-wire Wheatstone strain-gauge bridge) but it is wired to the bed as the Z probe — it is not read for extrusion force. Filament *presence* and *motion* are sensed optically/by encoder instead[80] | No — the load-sensing element on this machine is a strain gauge used for bed leveling, not for extrusion force[81] |
| Related settings (PA smooth time etc., firmware values) | Pressure_advance_smooth_time=0.04 (Klipper default is 0.040 — unchanged). Extruder also sets instantaneous_corner_velocity=1, max_extrude_only_distance=300, max_extrude_only_velocity=60, max_extrude_only_accel=5000, max_extrude_cross_section=9999999, and retract_restart_extra_toolchange=['0.5'] in the slicer[82] | Not published[83] |
| Extruder | ||
| Type (direct drive / bowden) & design name | Direct drive, "Dual-Gear Direct Extruder (1 Fan)" (Elegoo's own wording). On the Combo the extruder additionally carries a filament multiplexer (4-into-1 hub) and a filament cutter[41][40] | Direct drive, "Dual-gear direct drive extruder", marketed "Next-Gen Extruder"; manual calls it "Proximal extrusion"[84] |
| Gear ratio & drive gear material | Gear_ratio=52:10 (5.2 : 1), rotation_distance=28.8. Hobbed gear: 10 mm nominal diameter, SDK11 tool steel[40] | Not published[85] |
| Filament diameter | 1.75 mm[86] | 1.75 mm[87] |
| Filament path (PTFE-lined? all-metal? reverse bowden?) | Combo: four PTFE Bowden tubes run from CANVAS on top of the machine to a 4-in-1 filament hub / multiplexer screwed to the toolhead; from the multiplexer a 4 mm OD metal tube feeds the extruder, replacing the reverse-Bowden PTFE. Melt zone is all-metal with a titanium-alloy heat break — no PTFE at the melt zone. Non-Combo: conventional reverse-Bowden PTFE[41] | Reverse-bowden: spool holder ("material barrel") -> PTFE tube -> extruder; with CFS, CFS -> 70 cm PTFE -> buffer -> 55 cm PTFE -> extruder. Extruder has a push-fit tube connector[88] |
| Claimed extrusion force / grip (if published) | Elegoo publishes no extrusion-force figure[89] | Not published[90] |
| Auto load/unload routine | Yes, fully automatic in both directions. [filament_load_unload] defines two-stage load and unload macros; the load routine heats to 250 °C (M104 S250 / M109 S250), parks at the purge station via G180 S800, then runs G180 S812 → S811 → S810 → S800; unload runs G180 S813 (cutter position), retracts E-0.8, then E-100 F600. CANVAS auto-grabs filament on insertion; Elegoo lists "Auto Filament Unloading: Yes"[91] | Yes — on-screen "Extrude" auto-heats to the filament's target temp then feeds; "Retract" moves the toolhead to the left-front, cuts the filament and retracts. With CFS, loading is automatic on insertion[92] |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Proprietary Elegoo hotend, shared design lineage with CC1 but with a higher-temperature heater. The hotend sits on a main toolhead PCB plus a separate "supplementary board" (2×4 pin) that breaks out thermistor, heater and hotend fan. No tool-less quick-swap mechanism is documented; the nozzle is a separate serviceable part[40][93] | Proprietary K2 SE "hotend kit" — heat sink + heat break + heater + thermistor as a serviceable module, retained by 2 screws, thermal paste on the heat break; marketed "Quick-Swap Nozzle"[94] |
| Max nozzle temp claimed AND firmware max temp limit (both values) | Claimed 350 °C. Firmware limit max_temp=365 in the shipping config (printer_dsp.cfg L134), with sensor_type=NTC R25 350 and min_temp=-100. The non-shipping printer.cfg in the same repo sets max_temp=600 with sensor_type=NTC 100K beta 4300 — this drew a public GitHub issue[95] | Claimed <= 300 C. Firmware limit:[96] |
| Heater cartridge power (W) | 60 W ceramic plate-type PTC heater, ~9.6 Ω (24 V → 24²/9.6 = 60 W, self-consistent)[40] | Not published[97] |
| Temperature sensor type (thermistor model / thermocouple) & rating | Firmware: sensor_type=NTC R25 350 (an Elegoo-defined curve; the name implies R25 characterisation to 350 °C), on sensor_pin=toolhead:PA3. Teardown: "Glass bead NTC-200k", beta unknown ("likely 3950 or 4300"). The non-shipping printer.cfg uses NTC 100K beta 4300. Bed and chamber both use NTC 100 K β3950[40] | A thermistor is present (heater + thermistor wires unplugged during hotend replacement). Model and rating[98] |
| Stock nozzle size & sizes included in box | 0.4 mm fitted; only 0.4 mm supplied. No spare nozzle in the box (the box does include a "Spare Nozzle Wiper" and an unclogging pin, which is a different thing)[99] | 0.4 mm stock and the only size Creality supports in its slicer. Box contains no spare nozzle (only a 1.2 mm nozzle *cleaner*)[100] |
| Stock nozzle material (brass / hardened steel / plated copper / composite tip) | Bimetal: brass body with a hardened-steel tip. Elegoo's own part description: "0.4 mm nozzles with brass bodies for fast, even heating and hardened steel tips for long-lasting wear resistance". BOM part 黄铜硬化钢喷嘴 (brass hardened-steel nozzle)[101] | Hardened steel[102] |
| Nozzle mount standard (V6 / MK8 / Unicorn / proprietary) & swap procedure | Proprietary Elegoo Centauri-series nozzle (fits the whole Centauri family — CC1, CC2, Centauri 2 — per the part name "for Centauri Series"). Not V6/MK8/Unicorn. No documented tool-less swap; the manual's maintenance guidance is limited to clearing residue with the supplied unclogging pin[93][40] | Screw-in, removed/installed hot with a socket wrench; an M6 Socket Spanner ships in the toolbox. Thread standard not published[103] |
| Available nozzle sizes/materials (official + third-party compatibility) | Official: 0.2 / 0.4 / 0.6 / 0.8 mm, all brass-body + hardened-steel-tip. "Multi-Size Brass Hardened Steel Nozzle Kit for Centauri Series" ($24.99) contains all four; single 0.4 mm kit $22.99. Slicer ships full profile sets for all four sizes (nozzle_diameter: "0.4;0.2;0.6;0.8", 21 process profiles spanning 0.08–0.48 mm layers). Third-party: none documented[104] | For official alternates; third-party compatibility unverified[105] |
| All-metal hotend? PTFE near melt zone? | Yes, all-metal, with a titanium-alloy heat break. No PTFE at the melt zone — PTFE stops at the multiplexer/hub above the extruder[106][41] | Not published[107] |
| Melt-zone / high-flow design details (CHT-style, length) | In detail. Known: plate-type ceramic PTC heater (60 W), titanium heat break, 3010 axial heat-break fan (12 000 rpm, 0.10 A @24 V), silicone sock, bimetal nozzle. No melt-zone length, bore diameter, or CHT/high-flow geometry is published or measured anywhere[40] | Nozzle_volume = 178 (vendor profile). No CHT/high-flow claim made by Creality[56] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | Claimed 110 °C (at 25 °C ambient). Firmware max_temp=125, with a separate hardware over-temp parameter ot_bed=130. min_temp=-100[108] | Claimed <= 100 C. Firmware limit:[109] |
| Bed heater type (DC/AC mains) & wattage | AC mains-powered heater switched by a solid-state relay (SSR) board — NOT a 24 V DC bed. Measured resistance ~48.4 Ω; 1000 W @ 220 V / 250 W @ 110 V. Safety: ground present + thermal fuse. Control is a PWM signal (heater_pin=PG13, pwm_cycle_time=0.016 ≈ 62.5 Hz) into the SSR; the mainboard's HBED connector carries only the control signal[80][49][110] | Plate 235 x 235 x 3 mm (stated in the SKU). 24 V / 280 W — INFERRED from the SKU string, not stated in prose by Creality[111] |
| Heat-up time to 60°C (measured preferred) | For the CC2. No reviewer timed it[112] | Not published[113] |
| Bed surface (material, texture, coating), single/double-sided | Dual-sided spring-steel flex plate: textured PEI on one side, a "PLA-Specific" smooth surface on the other. Plate stack: 3 mm aluminium plate + 1.5 mm magnetic sheet. Platform 260 × 260 mm[80] | Epoxy-resin-coated spring steel, double-sided ("Double-sided epoxy resin coating, both sides can be used for printing"), "Spraying epoxy resin + spring steel plate"[114] |
| Magnetic removable plate? Spare plate availability & cost | Yes, magnetic removable. Spares: "Dual-Sided Build Plate for Centauri Series" $22.99; 3-pack $39.99; an older revision "(Original)" $21.99[115][13] | Removable spring-steel plate; official purchase link published. Magnetic retention not explicitly stated. Price[116] |
| Bed thermal uniformity (third-party thermal imaging if available) | Not published[117] | Not published[118] |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Load-cell / strain-gauge nozzle-touch probe in the bed. [load_cell_probe] with sensor_type=cs1237 (CS1237 24-bit ADC) on the dedicated bed MCU (sclk_pin=bed_sensor:PA5, dout_pin=bed_sensor:PA4, gain=A-128, sample_rate=1280). Calibration: counts_per_gram=25.0, trigger_force=200.0 g, safety_limit=1200.0 g, trigger_count=5. Bed hardware: 4-wire Wheatstone strain-gauge bridge with a single amplifier IC[80] | Strain gauge (nozzle-touch load sensing) — official spare SKU 4001010038 Strain Gauge_Leveling Sensor, with a dedicated replacement procedure[119] |
| Mesh grid size (probe point count — firmware evidence) | Probe_count=11,11 → 121 points, mesh_min=6,6, mesh_max=246,246, mesh_pps=3,3, algorithm=bicubic, bicubic_tension=0.2, mesh travel speed=500.0, horizontal_move_z=3.0, calibrate_accel=20000, move_check_distance=1.0, split_delta_z=0.01. Slicer mirrors: bed_mesh_min 10,10, bed_mesh_max 243,245, bed_mesh_probe_distance 22,22[120] | Not published[121] |
| Auto Z-offset (nozzle-touch etc.) or manual (paper method)? | Fully automatic nozzle-touch Auto Z-offset — no paper method. z_offset=0 in the probe section (the load cell defines Z=0 by contact). Additionally a nozzle-thermal-expansion compensation table exists: [z_compensation] with nozzle_temp_start=100, nozzle_temp_end=250, nozzle_temp_diff=10, fix_ref_temperature=140.0, and a 16-entry measured offset table nozzle_calibrate_datas = -0.039173 … 0.072890 mm[2] | Yes, automatic — "Full-auto leveling"; the nozzle-touch strain gauge establishes Z by contact, so no paper method[122] |
| Manual leveling screws/knobs present? | None documented. The manual's assembly chapter has no bed-levelling-screw step; the bed ships locked by three transport screws that are removed, not adjusted[123] | Not published[124] |
| Gantry-leveling / Z-tilt routine? | No — and structurally impossible in software. There is one Z stepper driving three belted lead screws, so there is no per-screw actuator to tilt. No [z_tilt] or [quad_gantry_level] section exists in either config[125] | Not published[126] |
| Leveling workflow (forced per print? saved mesh? adaptive mesh?) | Mesh is measured on every print by default. machine_start_gcode unconditionally issues BED_MESH_CALIBRATE mesh_min=… mesh_max=… ALGORITHM=… PROBE_COUNT=… ADAPTIVE=0 ADAPTIVE_MARGIN=0 FROM_SLICER=1 before G28 and heating. Adaptive meshing exists but is off in the default profile (ADAPTIVE=0); [g180] macros S8/S910 implement BED_MESH_PROFILE LOAD=ADAPTIVE. A saved default profile also exists (G180 S7 → BED_MESH_PROFILE LOAD=default). Elegoo additionally lists "Partial Bed-Leveling" as a CC2-only feature vs CC1. Tom's: "runs a full calibration … during the device self-check. The machine also runs through an optional leveling calibration before each print"[127] | Opt-in per print: "Check the Print Calibration to enable the auto-leveling function" / "Selecting print calibration can improve print quality". Marketed as adaptive: "Faster leveling of only the target print area"[128] |
| Filament Handling & Detection | ||
| Filament runout sensor (type, location) | Two-layer detection. (a) Toolhead optical sensor on the filament-detector board — [filament_switch_sensor filament_sensor] switch_pin=!toolhead:PB1, pause_on_runout=true, event_delay=10.0. A spring-loaded lever blocks an optical gate when filament is present. (b) Per-channel mechanical switches inside CANVAS, one detector board per channel, actuated by a spring-loaded bullet pin. Runout triggers a full flush macro and M2202 gcode_action_report=2505[40][41] | Photoelectric (optical) — SKU 4001090036 Multi-Color Upgrade Kit Material Break Detection Module_Photoelectric_Wireless; store: "built-in run-out sensor"; manual references an "out-of-material detection light"[129] |
| Tangle/snag detection (exact mechanism, if any — do not accept marketing wording at face value) | Real hardware, not marketing. [tangling_switch_sensor] switch_pin=!toolhead:PA1. Physically: a rear-facing Hall-effect sensor at the top of the toolhead filament-detector board; a spring-loaded metal tab in the filament multiplexer extends when filament tension exceeds the spring force (the pneumatic-fitting hub compresses downward), triggering the sensor and raising a tangle error. Prevention side: CANVAS spool holders have a spring-loaded ratcheting rewind mechanism that takes up slack during unload[41][40] | No distinct mechanism documented by Creality[130] |
| Clog detection (mechanism, if any) | Real: a filament-motion encoder. [z_filament_motion_sensor encoder_sensor] with extruder=extruder, detection_length=50 mm, switch_pin=PB4 (enable), motion_pin=PB3 (odometer), pause_on_runout=true. Mainboard pinout labels these S-DET PB4 = Filament motion detection and M-DET PB3 = Filament presence/absence. Elegoo lists Clog Detection: Yes for CC2, "–" for CC1 — this is a CC2-only feature[1] | Not published[131] |
| Filament change support (M600 / UI-driven) | M600 is the pause g-code (machine_pause_gcode: M600). Multi-colour changes use Elegoo's own M6211 command (M6211 T[next_extruder] L[flush_length] M{old_filament_e_feedrate} N{new_filament_e_feedrate} Q[old_filament_temp] R[nozzle_temperature_range_high] S[new_filament_temp]), plus T[n] tool selects. On-screen load/unload is fully UI-driven[132] | UI-driven from the touchscreen (Filament -> Extrude / Retract); machine_pause_gcode = PAUSE; toolchange macro change_filament_gcode present (spiral lift, move to X42 Y180)[133] |
| Spool holder location & max spool size; drybox compatibility | Four spool holders bolt to the right-hand vertical extrusions (two tapped holes each), spools hang outside the enclosure, exposed to ambient air. Inner diameter 53–58 mm; larger spools need a printed adapter. Holders are spring-loaded with a ratcheting rewind. No drybox and no drying function anywhere in the product[41] | External "material barrel" spool holder installed by the user at unboxing; one CFS holds 4 spools. Max spool diameter/width not published; drybox compatibility: SpacePi X4 Filament Dryer is listed as an optional accessory[134] |
| Multi-material/multi-color capability or official upgrade path | Native: CANVAS, 4 colours, single nozzle. Firmware [canvas_dev] on /dev/ttyS1 @115200 with canvas_ctrl_pin=host:PD21; slicer support_mms: 1. The module is separable and also retrofits the CC1 ($55 CC1 version; $120–150 CC2/Centauri 2 version). No chaining/expansion beyond 4 channels[41] | Yes — CFS. 1 CFS = 4 spools; up to 4 CFS = 16 colours; connected over an RS-485 interface ("485Communication Interface" on the machine diagram; "either of the two 485 ports on CFS" — both verified verbatim); RFID filament recognition (CFS-side; the support page lists "RFID Sensor in Printer: Optional"); automated magnetic filament cutter; single_extruder_multi_material = 1, creality_flush_time = 135[135] |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | One toolhead part-cooling fan: a custom 5020 radial blower with an integrated injection-moulded duct, P/N EFC-05D24D, Shenzhen Hua Xinrong, 0.50 A @ 24 V, 12 000 rpm, 4-pin (tach + PWM). Firmware [fan] pin=toolhead:PA8, tachometer_pin=toolhead:PB15, tachometer_ppr=2, tachometer_poll_interval=0.001[40] | One — SKU 3205010491 Part Cooling Fan_4020_24V (40 x 20 mm, 24 V). Ducting design not documented[136] |
| Auxiliary part-cooling fan? | Yes — a custom 12032 radial aux fan on the left chamber panel, P/N EFC-12J24H, 0.8 A @ 24 V, 4-pin (tach + PWM), VHB-taped to the wall with an integrated moulded duct. Firmware [fan_generic fan1] pin=PD15, tachometer_pin=PD14; addressed as M106 P2. Slicer sets auxiliary_fan: 1[137] | No — auxiliary_fan = 0[138] |
| Heatbreak/hotend fan | 3010 axial fan, 3-pin with tachometer, 0.10 A @ 24 V, 12 000 rpm. Firmware [heater_fan heatbreak_cooling_fan] heater=extruder, pin=toolhead:PB13, tachometer_pin=toolhead:PB14, fan_speed=1. (always full when the extruder is on)[40] | Yes — SKU 3205010476 Axial Fan_3010_24V (30 x 30 x 10 mm, 24 V), on a removable bracket, plus heat sink SKU 3205040114 (34 x 31 x 10.8 mm)[139] |
| Chamber/exhaust fan & filtration (activated carbon / HEPA) | Yes, and it is the CC2's headline thermal feature. A 12025 axial exhaust fan (P/N EFC12E24W, 0.5 A @ 24 V, 4-pin tach+PWM) works with a servo-driven shutter ("Smart Grille") that switches between exhaust-to-room and internal recirculation-through-filter. Filter media: HEPA + coconut-shell activated carbon ("designed to remove ultrafine particles, VOCs, and odors"), replaceable, $24.99 for 3. Firmware: [cavity_fan] pin=PD17, tachometer_pin=PD16 with a 5-step thermostat (T0=30, T1=38, T2=37, T3=40, T4=45 °C ↔ speeds A=1, B=0.7, C=0.3, D=1, E=0.3, F=0.4, G=0.5); [servo printer_servo] servo_pin=PB7, servo_det_pin=PB2, 1–2 ms pulse, maximum_servo_angle=180, initial_angle=90, M2801_open_angle=45 / M2801_open_time=10 ms, M2801_close_angle=45 / M2801_close_time=400 ms; a limit switch confirms grille position. Addressed as M106 P3[137][140] | Store spec table: "Air Purifier \ Yes" vs. Creality's own support page: "Air Filter \ No". Vendor profile: support_air_filtration = 0; all nine K2 SE filament profiles: activate_air_filtration = 0. Official parts list contains no filter/carbon/HEPA SKU[141] |
| Electronics bay cooling | Dedicated mainboard fan under stepper/heater-triggered control. [controller_fan board_cooling_fan] pin=PG15, tachometer_pin=PB9, stepper=stepper_x,stepper_y,stepper_z,extruder, heater=extruder,heater_bed, fan_speed=1.0, idle_speed=0.0, idle_timeout=30[1] | Not published[142] |
| Fan control (PWM? RPM feedback? firmware evidence) | All five fans are PWM-controlled, and four of the five have tachometer feedback wired and polled in firmware: part-cooling (toolhead:PB15, ppr=2, poll 1 ms), heatbreak (toolhead:PB14, poll 1 ms), board fan (PB9), cavity/exhaust (PD16), aux (PD14). Elegoo markets a "Fan Self-Check" feature; the connectors are documented as "tach + 5 V PWM"[1] | On-screen "fan calibration" is offered; PWM/RPM feedback[143] |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | Elegoo "self-developed" mainboard, part number EF-M5-V1.0.073. Main SoC: Allwinner R528-S3, which *also* runs the motion MCU firmware on its internal HiFi4 DSP core — the shipping config's [mcu] is serial=/dev/rpmsg_ctrl-dsp_rproc@0 with restart_method=remoterpc, i.e. rpmsg to an on-die DSP, not an external microcontroller. Two auxiliary MCUs: toolhead = GD32 (firmware build target toolhead_gd32, version string toolhead_gd32-00.00.00.03-app), bed = STM32F402RCT6. CANVAS mainboard = GD32F303RCT6[1][80][43] | Mainboard SKU 4002020086 K2 SE Mainboard_CR4CU220812S12K1_32; official firmware image named CR4CU220812S11_ota_img_*. Toolhead board SKU 4002010057 K2 SE Toolhead Board_GD32F303CBT6. Main MCU chip marking[144] |
| Host computer (SoC, RAM, storage) if firmware runs on embedded Linux | Allwinner R528-S3, 32-bit ARM (arch/arm, sun8iw20p1 platform, SMP, VFP+NEON), 128 MB in-package DRAM, 8 GB eMMC. Linux 5.4.61 (Allwinner BSP). Rootfs uses opkg (OpenWrt-style ipk packaging) with app data under /opt (/opt/inst, /opt/usr/cfg, /opt/usr/gcode)[1][145] | Storage 8 GB eMMC. SoC and RAM[146] |
| PSU (brand, wattage, rail voltage) | Partially known. Logic/motor rail is 24 V DC (Elegoo spec "Power Output: 24 V"; mainboard input is a 2-pin barrier terminal marked +24 V/GND with 9.6 mm pitch). The bed does not use the 24 V rail at all — it is switched mains via an SSR board. PSU brand, model and 24 V wattage are[1][80] | Power Supply Kit SKU 4004170031 Power Supply Kit_100-120/200-240V. Brand, wattage and rail voltage not stated; bed runs on a 24 V rail[147] |
| Input voltage (110/220 V, switch or auto) | AC 100–240 V, 50/60 Hz — auto-ranging, no voltage switch documented[148] | 100-120 V / 200-240 V, 50/60 Hz — with a MANUAL slide switch (115 V / 230 V), not auto-sensing[149] |
| Total rated power draw | 1100 W @ 220 V; 350 W @ 110 V (rated, not measured)[106] | 350 W[150] |
| Expansion headers / spare ports (fans, steppers, GPIO, USB host) | Unusually well documented. Mainboard carries: 2×4 pin header = DSP UART + UART0 serial consoles (5 V/TX/RX/GND each); a FEL 4-pin header (GND/DP/DM/5 V) for Allwinner recovery; a front USB-A host port; a camera 4-pin USB; the CANVAS "AMS port" (2×2 Micro-Fit 3.0, RS485-A/B + 24 V + GND); Bed MCU RS-232 (5-pin, 5 V switched for reset); JST-XHB connectors for chamber temp (PH0), light (PB5), FAN-1 (PD14/PD15), BOX-F (PD16/PD17), exhaust servo (PB2/PB7 + limit switch), Z-endstop (PB10), bed heater PWM (PG13), bed temp (PB14), mainboard fan; and an onboard piezo buzzer (PB12). Toolhead link is a USB-C connector carrying 24 V on Vbus[1][40] | USB-A host port for flash drives; RS-485 interface for CFS (2 ports on the CFS, 1 on the printer); camera header J10 on the mainboard. ~~Ethernet~~[151] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | "ELEGOO OS" = a closed C++ re-implementation of Klipper. The released source tree is unmistakably Klipper: src/ + lib/ with the full Klipper MCU HAL set (stm32, rp2040, atsam, avr, ar100, linux, simulator, lib/kconfiglib), and elegoo/ containing printer.cpp, configfile.cpp, chelper/, kinematics/, extras/ (215 files) — the Klippy host transpiled from Python to C++. Config syntax is Klipper's ([stepper_x], [tmc2209 …], [input_shaper], [bed_mesh], rotation_distance, pressure_advance). Slicer declares gcode_flavor: klipper. Community binary analysis pins the base at Klipper commit 28f60f7e, 616 commits past v0.9.1 — ⚠ this specific commit identification is a CC1 finding: freethecode.lol is a Centauri Carbon (CC1) campaign page and mentions the CC2 zero times (verified by full-text search, 2026-08-21). It is quoted here as the platform lineage, not as a CC2-specific binary analysis; nobody has published a commit-level diff of a CC2 binary. Latest OTA catalogued: v02.00.02.00 (2026-05-28); the published source corresponds to ~v01.01.13.10 / release 2602101855[152][153][19] | Creality Klipper fork on embedded Linux (gcode_flavor: klipper). Officially published: BOTH V2.3.6.43 and V2.3.6.49, each with releaseTime 1773244800000 = 2026-03-11 and its own release notes in the support page's firmwareList; the download widget surfaces.43. Support-supplied only (not on the page): V2.3.6.57, V2.3.6.66[154] |
| Source code availability (repos, GPL compliance status, last update date) | A GPL-3.0 source repo exists but is stale and incomplete, and compliance is actively disputed. elegooofficial/CentauriCarbon2 was created 2026-03-11, last pushed 2026-03-12, and has never been updated — while at least three OTA firmware releases have shipped since (v01.03.02.36, v01.03.02.51, v02.00.02.00). Open issue #8 "Out of compliance with GPLv3" (2026-06-02) is still open, with 8 comments escalating through 2026-08-14 — including an @-mention of @realrossmanngroup on 2026-08-13 and, on 2026-08-14, the first reply from an ELEGOO account (anjis-elegoo), which quotes the complaint back but does not commit to a source-release date. Re-verified 2026-08-21: still open, no new source push. Open issue #1 shows the release cannot even be built: mcu_build.sh -b toolhead_gd32 fails with can't found configfile: CentauriCarbon2/mcu_config/toolhead_gd32.config — the directory is missing from the repo. The same "Out of compliance with GPLv3" issue is open on the CC1 repo (#26). The freethecode.lol campaign is still live and still marked "Still ongoing" (issue raised 2025-08-07)[152][155][156][157][153][158][19] | Klipper fork sources are published, but no K2 SE machine configuration is[159] |
| Root/SSH access: possible? official or community method | And this is the answer that changed in mid-2026. An SSH daemon was present in CC2 firmware up to and including v01.03.02.51 (2026-05-09). Firmware v02.00.02.00, released 2026-05-28, "removes the SSH process entirely" and simultaneously blocks downgrades to any earlier version. OpenCentauri publishes a repacked v01.03.02.51 specifically to defeat the downgrade block ("Use at your own risk"). No CC2 community firmware currently restores SSH: OpenCentauri Patched Firmware is explicitly "Not currently" compatible with the CC2 (it is built on CC1 1.1.40), and COSMOS's public FAQ still says CC2 support is a "Maybe". Hardware-level root remains available via Allwinner FEL mode + UART (documented for the CC2 specifically, eMMC on mmc dev 1)[19][160][161][162][163] | No verified K2 SE method[164] |
| Moonraker / Mainsail / Fluidd or other open API available (stock vs after mods)? | None of them, stock. The host is a single C++ binary with a proprietary IPC socket (-a /tmp/elegoo_uds) and an embedded Mongoose 7.12 web server. What *does* exist: a built-in WebUI, an MJPEG camera stream on port 3031 (:3031/video), an Elegoo SDCP protocol used by ElegooSlicer/the Matrix app, an MQTT transport (the non-shipping config even hard-codes broker_address=tcp://broker.emqx.io:1883), and OctoEverywhere / Home Assistant integrations built on the SDCP API. OpenCentauri has reverse-engineered and documented the API and MQTT surface[165][166][167][153] | Not available stock; no K2 SE port found[168] |
| Notable community firmware/mods (names, repos, what they add) | For the CC2 specifically: none usable today. The ecosystem is real but CC1-first. (a) OpenCentauri Patched Firmware (repo OpenCentauri/cc-fw-tools) — adds SSH root, opkg/entware, boot logo, homing-position change, mid-print WebUI edits, USB-Ethernet support, M8212/M8213 chamber-light g-codes and TEMPERATURE_WAIT SENSOR=box; CC1 only. (b) COSMOS (OpenCentauri/cosmos, 231 stars) — full Klipper/Kalico on stock hardware via Yocto; "Add support for CC2" was merged 2026-07-01 (PR #225, author's own note: *"Untested, will still need some work probably"*), release 26.07.0 shipped 2026-07-29, yet the public FAQ still says CC2 is a "Maybe". (c) OpenCentauri/cad — full CC2 CAD models and FDM-optimised replacement parts. (d) Elegoo-Tag-Library — dumps of Elegoo RFID tags. (e) An OpenCentauri drop-in replacement mainboard project is in progress[169][170][171][172][173][174][175][161] | None specific to the K2 SE found[176] |
| Firmware update mechanism (OTA/USB) & update cadence history | OTA over Wi-Fi, or offline via USB. Packages are.zip.sig — a signed/encrypted wrapper containing *.swu.sig (the swupdate payload) and *.json.sig (metadata). The device uses an A/B partition scheme managed by swupdate: the update is written to the inactive slot which becomes primary on next boot. USB path: drop the.zip.sig on a FAT32 stick → Settings → Check for Updates → Offline Update. Cadence: 7 releases in ~7 months (2025-10-31, 2025-11-17, 2025-12-11, 2026-01-09, 2026-04-09, 2026-05-09, 2026-05-28)[19] | Official: "OTA Firmware Updates: Yes". In practice owners also flash.img files from a FAT32 USB stick. Observed cadence: V2.3.6.43 (Mar 11 2026) ->.49 ->.57 ->.66[177] |
| G-code flavor & notable custom G-codes/macros | Klipper flavour (gcode_flavor: klipper) plus a substantial proprietary extension set: G180 S<n> — a numbered macro dispatch table (S1–S10 calibration steps, S800 "move to waste box", S810–S813 flush/cutter steps, S900-series mesh profile logic); M6211 — CANVAS tool change with flush length, feedrates and temperatures; M2202 gcode_action_report=<code> — UI progress reporting; M2801 — exhaust-grille servo open/close; M190 S<t> A — bed heat with an extra A flag; SET_CONDITION J/A/B … SET_CONDITION_END — a conditional-execution primitive not present in mainline Klipper; plus standard BED_MESH_CALIBRATE, SAVE_CONFIG, SET_PRINT_STATS_INFO, PROBE, SET_KINEMATIC_POSITION, TEMPERATURE_WAIT. OpenCentauri maintains a custom-g-code reference[178] | Klipper flavour. Custom macros: START_PRINT EXTRUDER_TEMP=... BED_TEMP=..., END_PRINT, PAUSE; use_relative_e_distances = 1; emit_machine_limits_to_gcode = 1; arcs used in the toolchange macro (G2... I0.86 J0.86 P1)[179] |
| Root shell: exact method (official setting toggle / vendor-documented / community exploit / none). Is root persistent across OTA firmware updates, or wiped each update? | Three tiers, none of them a supported toggle. (1) No official/vendor-documented root method exists — there is no developer-mode switch in the UI and no Elegoo documentation of shell access. (2) Firmware-resident SSH existed up to v01.03.02.51 (2026-05-09) and was deleted in v02.00.02.00 (2026-05-28); OpenCentauri describe the change as removing "the SSH process entirely, making it more difficult to perform research on a live device", and the same release blocks downgrades. Staying on ≤v01.03.02.51, or flashing OpenCentauri's repacked v01.03.02.51, is therefore the only firmware-level route — and I could not find published CC2 root credentials (the widely-quoted root / OpenCentauri pair belongs to OpenCentauri's CC1 patched firmware, which does not run on a CC2). (3) Hardware-level root is confirmed available: Allwinner FEL mode (short R53 while resetting, or efex from U-Boot) plus the on-board UART0/DSP serial headers, with CC2-specific artefacts published (u-boot-sunxi-with-spl-cc2.bin, backup_cc2.scr/restore_cc2.scr, eMMC on mmc dev 1) — this gives full eMMC read/write, i.e. offline root. Persistence: an OTA update replaces the entire rootfs slot (A/B swupdate), so any rootfs modification is wiped by the next official update.[19][160][162][180][163][1] | No root method for the K2 SE exists in any source[181] |
| Userland: OS base (Debian/Ubuntu/Buildroot/OpenWrt/busybox-only), package manager present (`apt`/`opkg`/`ipkg`/none), CPU architecture (armv7 / aarch64 / mips / x86), and free space on the writable partition. A busybox/no-apt rootfs with a few MB free is a red flag — say so. | OS base: a Buildroot/OpenWrt-style embedded Linux, not Debian/Ubuntu. Evidence: opkg is the package manager (Elegoo's own build docs: "开发板上opkg常用指令 … opkg install xxx.ipk", -o /opt/packages/), packaging is ipk with control.tar.gz/data.tar.gz and debian-binary = 2.0, init is /etc/init.d-style shell scripts, and app state lives under /opt (/opt/inst, /opt/usr/cfg, /opt/usr/gcode). Kernel: Linux 5.4.61 (Allwinner BSP). Architecture: 32-bit ARM (armv7-class), arch/arm, platform sun8iw20p1, SMP, VFP+NEON — *not* aarch64. RAM: 128 MB total, in-package. Storage: 8 GB eMMC. Free space on the writable partition: for the CC2 — the CC1-derived partition map gives rootfsA/B ≈ 134 MB each, rootfs_data ≈ 134 MB, UDISK ≈ 7.06 GB, but I did not find a CC2 partition dump[145][1][182] | For every sub-part on this model[183] |
| Native Tailscale feasibility: can `tailscaled` run persistently on-device? Cite concrete evidence — community guides, wiki entries, forum posts, or repos of people actually doing it on THIS model. Note whether it needs `/dev/net/tun` (kernel TUN support) and whether the kernel provides it, plus whether userspace-networking mode is the only option. Distinguish "someone did it" from "should theoretically work." | Not demonstrated by anyone, and structurally hostile. (a) No evidence any person has run tailscaled on a Centauri Carbon of either generation — I searched OpenCentauri's docs, its 4 relevant GitHub orgs/repos' issues, freethecode.lol, and the open web for "Tailscale + Centauri Carbon"; the only 3D-printer Tailscale guidance found is generic (Voron/Raspberry-Pi subnet-router patterns). (b) /dev/net/tun is very likely absent: CONFIG_TUN is not set in either Allwinner R528/T113 defconfig in OpenCentauri's fork of the vendor kernel (sun8iw20p1smp_defconfig, sun8iw20p1smp_t113_auto_defconfig); the only tunnel symbol present is CONFIG_IPV6_TUNNEL=y, and no CONFIG_NETFILTER* symbols are set at all. Without TUN, tailscaled must run --tun=userspace-networking, which rules out subnet-router and exit-node roles and costs throughput. (c) 128 MB RAM shared with the motion controller is a hard practical ceiling — tailscaled's resident set is a large fraction of that. (d) On current firmware there is no shell to install it from (N8), no apt, and an A/B rootfs that erases changes on update (N12)[184][1][161][169] | No one has done it on a K2 SE, and the only expert statement on the platform is negative[185] |
| SSH daemon: present by default or must be installed/enabled? Default credentials if documented. Does an OTA update disable it or reset the password? | Present by default up to v01.03.02.51; absent from v02.00.02.00 onward. OpenCentauri's wording is that v02.00.02.00 "removes the SSH process entirely", i.e. the daemon shipped enabled (or at least resident) in earlier builds. Default credentials for stock CC2 firmware: — I found none published. The frequently-cited root / OpenCentauri pair is explicitly the credential set for OpenCentauri's patched CC1 firmware, which does not support the CC2. An OTA update to v02.00.02.00 removes SSH and blocks rollback, so an OTA can and does permanently disable it[19][169][160] | Not published[186] |
| Filesystem persistence: is the rootfs read-only or overlay-mounted? Do user-installed binaries and init/systemd services survive reboot and survive firmware updates? Is there a supported place to persist customizations? | A/B rootfs managed by swupdate; user-installed software does not survive official updates. Each update is written to the *inactive* rootfs slot, which then becomes primary — so anything added to the live rootfs is left behind on the now-inactive slot. There is a separate rootfs_data partition (overlay/persistent data) and a large UDISK partition; Elegoo's own supported persistence locations are /opt/usr/cfg (user config, incl. autosave.cfg written by SAVE_CONFIG) and /opt/usr/gcode (job storage), with defaults in /opt/inst. run_printer.sh even contains a commented-out "copy default config to user config" path, showing Elegoo intended /opt/usr/cfg/user_printer_dsp.cfg as a user-override slot — but it is commented out in the shipped script, so the binary is launched against /opt/inst/printer_dsp.cfg and user config overrides are not active[19][182] | Not published[187] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | 5.0-inch colour capacitive touchscreen, front-mounted, connected by FFC ribbon (RGB888 + touch). Controller is a Sitronix ST77922 panel with an ST1633i I²C capacitive touch controller[188][1][189][190] | 3.97-inch colour touchscreen, 480 x 800 px[191] |
| On-device UI capabilities (model preview, per-object controls, etc.) | Model preview and file browse (local + USB), one-click calibration suite, per-spool CANVAS load/unload with manual filament type/colour entry, RFID tap-to-read, camera live view + timelapse, chamber light toggle, Z-offset adjust, network/IP display, offline firmware update, print history. v01.03.02.51 added "the ability to exclude and reset regions containing foreign objects" (a foreign-object exclusion feature). Per-object cancellation ("skip object") is NOT supported — it is an open feature request[19][192] | 5 sections (Home, Adjustment, Files, Function settings, Help): live temperatures, print progress, axis moves, filament load/unload, file browse/print, network & camera settings, machine info, log export, wiki access, Self-check, CFS filament mapping with per-slot colour/type editing, humidity indicator, per-object exclusion mid-print[193] |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Wi-Fi (2.4 GHz-class AIC8800D80 SDIO module) + USB flash drive only. NO Ethernet port. No SD card slot. Hardware: a front USB-A host port and a separate 4-pin camera USB header on the mainboard[1][194] | Store: "File Transfer: USB Drive/Ethernet/Creality Cloud". Support page: "File Transfer: USB, WiFi". Manual spec row: "Print Interface: USB drive printing / Local Area Network Printing / Creality Cloud Printing" (interface-agnostic). 8 GB eMMC internal. WiFi band/standard:[195] |
| Cloud service & phone app; LAN-only mode possible? | Cloud: Nexprint (Elegoo's model hub, integrated into ElegooSlicer's home screen, in beta) and the ELEGOO Matrix mobile app (binding added in v01.03.01.89, app ≥ v1.0.11). LAN-only mode exists and works: connect to Wi-Fi, note the displayed IP, add the printer in ElegooSlicer's Device tab on the same subnet. However, LAN-exclusive mode is mutually exclusive with useful features[19][196] | Creality Cloud (web + "Creality Cloud" phone app, bind by QR code on screen). LAN printing supported via Creality Print by IP. Whether a true cloud-free/LAN-only mode is enforceable:[197] |
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | Built-in and standard. 1280 × 720 (720p), 16:9, max 30 Hz, fixed focus (glued barrel), auto exposure, FOV ~90–110°, USB 2.0, 30 × 30 mm PCB, 500 mA @ 5 V, 4-pin JST-ZH 1.5 mm connector, enumerates as "Integrated Camera". Stream is MJPEG on port 3031 (:3031/video)[198][167] | Not included — optional accessory. Store spec table lists "AI Camera \ -". Compatible unit is the K1-series AI camera (1080p); the cable is not included and must be bought separately (P/N 3103110566 -> mainboard port J10). Framerate:[199] |
| Camera features: live monitor, timelapse, AI failure detection (spaghetti detection) — how real is it? | All three present. Live view in the WebUI/Matrix app/ElegooSlicer; timelapse with video export (a v02.00.02.00 changelog entry fixes "mismatch between timelapse video filenames and print file filenames during export"); AI spaghetti/failure detection with notifications. Real-world reliability is mediocre[200][19] | Timelapse: claimed by Creality — support page lists "AI Camera for Monitoring (Timelapse supported): Optional" and "AI Camera for Calibration (Timelapse supported): Optional". Live monitoring via Creality Cloud/Print. AI failure ("spaghetti") detection:; fps; behaviour untested by anyone[201] |
| LED chamber/toolhead lighting | Chamber LED present and firmware-controlled: [output_pin led_pin] pin=PB5, value=0; mainboard "Light" connector is a JST-XHB-3P with +24 V (max 1 A), GND and signal on PB5. Toolhead has an LED PWM pin that is not connected[1][40] | Present — machine_LED_light_exist = 1; store spec "Lighting Kit \ Yes"[202] |
| Calibration Routines & QoL | ||
| One-touch auto-calibration suite: what exactly does it calibrate? | Elegoo "Full-Auto Calibration". Verified contents: (a) 121-point bed mesh, (b) Auto Z-offset via load-cell nozzle touch, (c) input-shaping / vibration compensation, (d) an automated nozzle-clean cycle that precedes probing, (e) nozzle-temperature Z-compensation table, (f) sensor self-checks (fan, exhaust grille, cutter status, CANVAS). Notebookcheck timed the whole thing at 26–27 minutes; CreativeBloq at "around ten minutes" and notes "it gets somewhat noisy"[200][203] | On-screen Self-check (Settings -> System -> Self-check -> Select All -> Start detecting) plus auto leveling and fan calibration; maintenance schedule also lists "Optimization of vibration veins" and "Equipment self-test"[204] |
| PID autotune exposed to user? | Yes — there is a dedicated [pid_calibrate] section with its own preparation macro (pid_calibrate_gcode=G90\nG28 X Y TRY\nM204 S10000\nG180 S800\nM400\n, i.e. home and park at the waste station before tuning). Factory PID values are shipped for both heaters: extruder pid_kp=25.989 / ki=3.397 / kd=49.705; bed pid_Kp=46.504839 / Ki=1.453276 / Kd=372.038710[205] | Not published[206] |
| Flow-rate calibration tooling | As an on-printer feature. No flow-calibration macro exists in [g180] or elsewhere in the config. The practical path is ElegooSlicer's inherited OrcaSlicer calibration suite (flow ratio, PA, temperature towers), since ElegooSlicer is an OrcaSlicer/BambuStudio fork. Vendor per-material flow ratios are shipped (e.g. PAHT-CF filament_flow_ratio: 0.96)[207] | On-device[208] |
| Belt tension check/indicators | None. No belt-tension routine, indicator, or resonance-based tension readout in firmware; no tensioning procedure in the manual. Hardware provides spring-loaded automatic tensioners instead (BOM X/Y轴同步带张紧弹簧 = XY belt tensioning springs, XY轴皮带张紧惰轮支架 = tensioner idler brackets)[209] | Not published[210] |
| First-layer inspection features | Yes — scan_first_layer: 1 is set in the machine profile, i.e. camera-based first-layer inspection is enabled. Separately, an elaborate automated nozzle-clean-and-verify routine runs before probing (clean_nozzle_gcode / [g180] S1–S2: heat to 200 °C, wipe on the silicone wiper, cool to 140 °C, run a Z-touch pattern, re-wipe)[211] | No — scan_first_layer = 0[56] |
| Skew calibration | None. No [skew_correction] section in either config, no skew routine in [g180], nothing in the manual or any review[212] | Not published[213] |
| Assembly level & time from unbox to first print | Semi-assembled; ~15–20 minutes of assembly, ~45 minutes unbox-to-first-print including calibration. Steps: remove 3 bed transport screws, clip on the touchscreen (ribbon cable), screw on the nozzle-wiper assembly and waste chute (4 screws, from inside, at the rear), bolt the CANVAS bracket + module (3 screws), plug the CANVAS power/signal cable, route 4 Bowden tubes to the toolhead hub (2 screws), bolt 4 spool-holder brackets (2 screws each), fit the tophat + CANVAS extension[214][65] | Ships nearly assembled: install the touchscreen and the material barrel (spool holder), remove three shipping screws (a, b, c), connect power, select language, clear debris from "the green cube", then follow on-screen calibration. Time:[215] |
| Power-Loss & Interruption Recovery | ||
| Power-loss recovery: mechanism (how is state saved? capacitor / eeprom / file on shutdown?) | Real hardware-sensed power-loss detection with an energy-reserve circuit, not a periodic-file-write hack. [por] (power-outage recovery): sensor_pin=host:PG9 (mains-loss sense), ctrl_pin=host:PG11, charge_pin=host:PD20, charge_time=30.0 (a reservoir/supercap charge line), rest_time=0.01 (10 ms poll), and an explicit shutdown_pins list that de-energises everything in a defined order on detection: host:PD22 (LCD PWM), host:PE17 (nozzle power), host:PB11 (bed power), PG13 (bed control), !PF6/!PE15/!PE12 (X/Y/Z enables), PB5 (light), PD17/PD19 (box fan), PD15 (fan1), PG15 (mainboard fan). Enabled at the print layer via [virtual_sdcard] power_outage_enable=1[216] | Feature present ("Power Loss Recovery: Yes"). Mechanism entirely undocumented — no statement of capacitor, EEPROM, or state-file-on-shutdown[217] |
| Verified working? Third-party test results; resume seam quality | Confirmed working by an independent reviewer, but with documented bugs that took two firmware releases to fix. Notebookcheck: "the auto-filament refill, filament runout sensor, hotend cover sensor, and power loss recovery … worked as they should." Firmware history shows real defects: v01.03.02.51 (2026-05-09) fixed "print history showed a total print time of 0 after resuming printing following a power outage", and v02.00.02.00 (2026-05-28) fixed "resume printing failed after power loss when using an external spool under certain conditions". v01.03.02.36 "Optimized print recovery quality after pause/resume". No reviewer photographed or measured the resume seam[200][19] | Nobody has tested it[218] |
| Filament-runout pause/resume behavior | Automatic and elaborate. On runout the printer runs a full macro: M400 → G28 X Y TRY → M204 S10000 → park at the waste station (G180 S800) → part fan to 25 % → purge E10 F300 + E5 F150 → fan to 88 % (M106 S225) → 5 s dwell → three-stage flush/wipe (G180 S811 → S810 → S800) → fans off → report M2202 gcode_action_report=2505 to the UI. Governed by pause_on_runout=true, event_delay=10.0, pause_delay=1.0. In CANVAS mode, auto-refill from a duplicate spool takes over instead of pausing. Pause/resume additionally has a scripted purge-and-prime on resume[2][19] | Print pauses and waits for the owner: "Insert consumables and proceed with the feeding operation once the out-of-material detection light is on." machine_pause_gcode = PAUSE[219] |
| Materials Support | ||
| Officially supported filament list | Elegoo's own two-tier list: "Ideal: PLA / PETG / ABS / ASA. Capable: TPU³ / PC / PA / PET / fiber-reinforced filaments⁴." The shipped slicer carries 30 CC2-specific filament profiles: PLA (Basic, PRO, +, Matte, Silk, Galaxy, Glow, Marble, Sparkle, Translucent, Wood, Rapid PLA+), PLA-CF, PETG (+ PRO, HF, Translucent, Rapid), PETG-CF, PETG-GF, PET-CF, ABS, ASA, ASA-CF, PC, PC-FR, PAHT-CF, TPU 95A, Rapid TPU 95A[220] | Store & support spec: "PLA/PETG/TPU 95A/PLA-CF". Manual p.02: "Hyper PLA/PLA/TPU 95A/PETG" (no PLA-CF). Vendor slicer default_materials additionally lists Hyper ABS, Generic ABS, Generic ASA, CR-ABS, Generic PLA-Silk, CR-Silk, Hyper PETG, CR-PLA, CR-PETG, Hyper PLA-CF[221] |
| PLA/PETG/TPU results & constraints (min TPU shore hardness) | PLA and PETG: excellent and effortless — the unanimous reviewer verdict. Vendor profiles: PLA 210 °C / 21 mm³/s; PETG 250 °C / 11 mm³/s. TPU: works down to 95A, verified by Tom's ("The system worked great for every filament I printed with, including TPU down to 95A shore hardness"; a TPU Air Duster at 0.12 mm / 50 mm/s took "just over two hours … surface finish is a little rough, but the print is fully functional"). TPU constraint on the Combo: you must fit the Flexible Filament Adapter and physically disconnect the CANVAS cable — i.e. no multicolour TPU. Profiles: TPU 95A 3.2 mm³/s, PA 0.1[222] | PLA: Generic 220 C nozzle (range 190-240), bed 60 C, 14 mm3/s, flow 0.95, PA 0.04 — Hyper PLA (the machine default) 220 C, bed 60 C, 23 mm3/s, PA 0.05. PETG: Generic 250 C (range up to 270), bed 80 C, 12 mm3/s, PA 0.08. TPU: officially 95A minimum hardness; 220 C (first layer 230), bed 35-40 C, 3 mm3/s, PA 0.4; HP-TPU identical at 3 mm3/s, bed 40 C[223] |
| ABS/ASA feasibility (enclosure/chamber constraints, warping reports) | Demonstrated on a US 110 V machine: a full standard-ABS print succeeded with no warping and no layer cracking. Aurora Tech printed standard ABS in a 17 C garage with the tall cover fitted; the job ran 3 h 41 min (about 18 % over the slicer estimate) and he reports "no corner warping", the part "sticks very well because the ambient temperature is stable", "no layer cracking", overhangs "printed nicely using standard ABS" and a good bottom surface, with the chamber holding ~45 C and peaking ~47 C (B6). Enclosure plus 110 C bed plus Smart Grille recirculation also give a "temperature hold mode where the vents shut off" for ASA (Notebookcheck). Vendor profiles: ABS 270 C / 18 mm3/s / fan capped at 40 %; ASA 270 C. Remaining caveats: (a) ASA is weaker than ABS here. Notebookcheck hit ASA adhesion problems, fixed them only by preheating the bed 10 minutes at 110 C, and photographed warping on an ASA test print; (b) there is no active chamber heating and no chamber preheat/wait, and an owner reports the CC2 starts printing before a requested 45-50 C chamber target is reached; (c) the ABS success is a single reviewer on a single part geometry. [RETRACTED after critique: an earlier draft claimed the bed mesh is probed at a fixed 60 C rather than at ABS bed temperature. It is not; the start g-code waits for print bed temperature (M190... A) before BED_MESH_CALIBRATE. See J6.][30][224][31][161] | Profiles exist and were opened: Generic ABS 260 C / 90 C bed / 12 mm3/s / PA 0.044; Generic ASA 260 C / 90 C / 12 / PA 0.044 (temperature_vitrification: 110); HP-ASA identical to Generic ASA; Hyper ABS 260 C / 90 C / 23 mm3/s / PA 0.02; plus CR-ABS — but ABS/ASA are excluded from the official supported list, and the machine is open-frame with no chamber heating (support page: "Chamber Temperature: No")[225] |
| PC / Nylon / CF-filled feasibility (nozzle & extruder wear constraints) | Demonstrated on real parts by Tom's Hardware, and this is the CC2's strongest surprise. PC: 7 utility knives in Prusa PC Blend, 0.2 mm, 100 mm/s, 6 h 06 min — "the prints were completed … and are perfect"; plus replacement spool holders in Polymax PC, 5 walls, 2 h 36 min. PA (nylon): Bambu Lab PAHT-CF RC part, 0.2 mm, 100 mm/s, 2 h 12 min — "Though this print can be a warping nightmare, it did really well". Tom's summary: "surprisingly strong with engineering materials, even without an actively heated chamber". Vendor profiles: PC 270 °C / bed 100 °C / 16 mm³/s / fan 35 % max; PAHT-CF 290 °C / bed 100 °C / 6 mm³/s / fan 30 %. Second independent confirmation (added 2026-08-19, reader-supplied): Aurora Tech, on a US 110 V unit, printed PA-CF successfully with the enclosure at ~41 C near the end of a 54-minute job, describing the surface as "as good as completely dried PACF" and the part as so stiff that "when I drop it on the table, it sounds like metal rather than plastic", despite the spool having been left open about two weeks; he also printed PPS-CF at the maximum nozzle temperature and reports it "worked very well" max, first 3 layers fan-off, flow ratio 0.96; PET-CF 270 °C / 8 mm³/s; PLA-CF 16 mm³/s with required_nozzle_HRC: 40. Abrasion is handled by the stock hardened-steel-tipped nozzle and SDK11 tool-steel hobbed gears; https://www.youtube.com/watch?v=xp-jQ7dljV0 at 21:20-22:10 and 26:20 (Aurora Tech; evidence/auroratech_cc2_combo_transcript.md)[40] | PC and Nylon: not supported — no profiles ship, 300 C nozzle cap and no heated chamber. PLA-CF: officially supported (Generic PLA-CF and Hyper PLA-CF profiles both ship), aided by the hardened-steel nozzle[226] |
| Effective material ceiling given hotend+bed+chamber limits (reasoned, cite limits) | Ceiling ≈ PC / PA(-CF) / PET-CF — i.e. everything the 350 °C nozzle and 110 °C bed can reach *that does not require a heated chamber*. Reasoning from the verified limits: nozzle firmware max 365 °C (claim 350) is enough for PC (270), PAHT-CF (290) and PET-CF (270) with margin, and would nominally reach PPS/PPA-class temperatures; bed firmware max 125 °C (claim 110, ot_bed=130) covers PC/PA bed requirements (vendor profiles use 100 °C); the binding constraint is the chamber — passive only, thermostat setpoints imply 30–45 °C, ot_box=100, no heater, no preheat-and-wait. That rules out reliable large ABS/ASA/PC-CF/PPS parts and warp-sensitive geometry, which is precisely where 50–60 °C active chambers earn their keep. Practically: excellent to PETG/PLA-CF; very good for small-to-medium PC and PA-CF; marginal for large ABS/ASA; not a PPS/PEEK machine despite the nozzle number — notwithstanding Elegoo's own non-Combo comparison table, which lists "Capable: PPS/PPS-CF/PPS-GF, PPA-CF/PPA-GF" (see R1); that claim is rejected here on the chamber argument and no reviewer has printed PPS on either Centauri[31] | PLA / PETG / TPU 95A / PLA-CF. ABS/ASA technically slicable but unsupported and warp-prone. No PC, no PA/Nylon, no high-temp engineering polymers. Reasoned from: nozzle <= 300 C (slicer-permitted max 280), bed <= 100 C (highest preset 90), no enclosure, no chamber heating, single 4020 part fan, no aux fan, 23 mm3/s flow cap on the default Hyper PLA profile (14 on Generic PLA)[227] |
| Filament profile ecosystem in the recommended slicer | Strong and CC2-specific. ElegooSlicer (an OrcaSlicer/BambuStudio fork, distributed on the included USB and on GitHub) ships 30 filament, 21 process (0.08–0.48 mm layers across 0.2/0.4/0.6/0.8 nozzles) and 5 machine profiles named specifically for the CC2 (@ECC2 / @Elegoo CC2). Per-material pressure advance, flow caps, fan curves, plate temperatures and exhaust-fan logic are all pre-set. OrcaSlicer and Cura are also listed as supported. RFID auto-selects the profile for Elegoo-branded spools[228] | 20 official K2 SE filament profiles in Creality Print (6.0+ required; current release 7.2.1.5476, Aug 04 2026): CR-ABS, CR-PETG, CR-PLA, CR-Silk, Generic ABS, Generic ASA, Generic PETG, Generic PLA, Generic PLA-CF, Generic PLA-Silk, Generic TPU, HP-ASA, HP-TPU, Hyper ABS, Hyper Marble, Hyper PETG, Hyper PLA, Hyper PLA-CF, Hyper Stardust, Soleyin Ultra PLA (all "@Creality K2 SE 0.4 nozzle"), plus 3 process profiles (0.16/0.20/0.24 mm) and 2 machine profiles[229] |
| Safety | ||
| Thermal runaway protection (verify in firmware source if at all possible) | Present and firmware-verified for both heaters. [verify_heater heater_bed]: max_error=60, check_gain_time=60, hysteresis=5, heating_gain=2. [verify_heater extruder]: max_error=30, check_gain_time=20, hysteresis=5, heating_gain=2. These are Klipper's standard runaway semantics (heater must gain ≥2 °C per check_gain_time while heating; cumulative error beyond max_error faults the printer). Backed by independent hardware cutoffs: ot_bed=130 and ot_box=100, and a thermal fuse in the mains bed circuit[80] | Could not be verified in source[230] |
| Certifications (UL/ETL/CE/FCC — verify, don't assume) | I could not verify a single certification for the CC2. The printed manual contains no FCC/CE/UKCA/RoHS/WEEE statement and no declaration of conformity; the Elegoo product page lists none; the packaging/nameplate was not available to me[231] | No UL/ETL/CE/FCC mark stated[232] |
| Hardware safety: fusing, strain reliefs, belt covers, pinch points | Partly documented. Bed circuit: mains AC with ground present and a thermal fuse, switched by an SSR board. OpenCentauri's own warning is unambiguous: "Danger: The Bed runs on mains AC current at 110/220 V. These voltages may be lethal. Exercise extreme caution around the bed and SSR board." Enclosure with glass door and tophat covers all belts and the gantry. Manual safety notes cover burns, pinch hazards, grounding, dust maintenance and adult supervision of children. Mainboard 24 V input is a 2-pin barrier terminal described as "very flimsy — do not overtighten." Toolhead USB-C carries 24 V on Vbus (fries anything else plugged in). No fuse ratings or strain-relief details are published[80][1] | Open frame: hot bed, nozzle and moving CoreXY gantry are all exposed. Manual warnings: don't touch nozzle/bed during operation; don't wear gloves near moving parts (entrapment/crushing/cutting); children must be supervised; "Hot parts!... Wait one-half hour after switching off"; grounded three-prong outlet required; don't hot-plug wires[233] |
| Firmware safety limits (max temp cutoffs — exact values) | Nozzle max_temp=365 / min_temp=-100; bed max_temp=125 / min_temp=-100, ot_bed=130; chamber max_temp=110 / min_temp=-100, ot_box=100. Idle timeouts: extruder 300 s (extruder_timeout_gcode=M104 S0), bed 600 s (range 60–259 200 s). Probe force limits: trigger_force=200 g, safety_limit=1200 g. min_extrude_temp=-100 — cold-extrusion protection is DISABLED, as is Klipper's extrusion cross-section check (max_extrude_cross_section=9999999)[234] | Not published[235] |
| Known safety incidents / recalls / fire reports (with sources) | None found for the CC2. No recall, fire report or safety incident surfaced in any of the eight reviews, the Elegoo GitHub issue trackers (CC2 repo: 11 issues, none safety-related), the OpenCentauri issue trackers, freethecode.lol, or general web search[236][237][153] | None found[238] |
| Noise & Power Consumption | ||
| Noise: claimed dB and independently measured dB (distance/method) | Claimed ≤45 dB (footnoted "Data from Elegoo Lab. Tested with Elegoo PLA filament in Silent Mode with the auxiliary part cooling fan turned off"). Independently measured by Notebookcheck: average 44–47 dB, peaks to 54 dB. Distance and instrument not stated[14] | No official dB claim found. No independent measurement exists. A "~50 dB" figure circulates[239] |
| Silent/quiet mode available? | Yes — Elegoo's own noise footnote references "Silent Mode". Firmware side, the mainboard fan idles at zero (idle_speed=0.0, idle_timeout=30) and the cavity fan is thermostatically staged, both of which reduce idle noise. No dedicated silent-mode section appears in the released config, so the mode is implemented above the motion layer (UI/host)[240] | Vendor slicer profile says no silent mode is exposed (silent_mode = 0), but Creality's official firmware release notes for V2.3.6.49 say "Reduced XY motor noise; optimized Z motor for silent mode", i.e. the printer itself has a silent mode[241] |
| Power draw: idle / PLA print / high-temp print (measured preferred) | No measured CC2 power figures exist. Rated only: 1100 W @ 220 V; 350 W @ 110 V, 24 V logic rail, ~1000 W of that being the mains bed[242] | Only the 350 W nameplate rating is published[243] |
| Reliability, Support & Ecosystem | ||
| Warranty length & support reputation (evidence, not vibes) | 12 months standard on the printer, with a component-tiered warranty table: consumables carry no warranty (PEI platform plate, build plate, nozzle kit, PTFE tube, heater, thermistor, hot end, packaging, manual, tools); CANVAS parts have a limited warranty covering the feeder-module motherboard, 4-pin cable, five-way module, spool holder (excluding support claws), feeder motor, communication board, gearbox/cutter assembly, fan and housing, with "damage caused by human error … not covered". A 2-year extended warranty is sold for the Centauri series (e.g. via MatterHackers). Support reputation: mixed, evidence-based[244][153] | "Up to 12-Month Warranty", 14-day return & refund, "Lifetime Customer Support" (Creality store). Reputation: mixed — inconsistent handling and 2-3 day response times reported[245] |
| Common failure points (from long-term reviews/forums, with sources) | Six documented so far, all from the first ~7 months. (1) Spool holders — Tom's physically broke one and "tore the rubber grips off" with a third-party cardboard spool; TechRadar had Elegoo plastic reels slip off the holder; OpenCentauri documents a ratchet clicking noise needing grease. (2) Toolhead filament-hub collets are effectively unremovable — Tom's could not extract the PTFE tubes even with the supplied tool and help, so clearing an extruder clog means unscrewing the whole hub. (3) 250 °C load routine cannot purge high-temp residue (firmware-confirmed). (4) Software/connectivity flakiness — Notebookcheck: random refusal to connect to ElegooSlicer on Windows, monitoring-window errors, 17 %-optimistic time estimates; GitHub issue #9 LAN-mode exclusivity. (5) False positives on clog/spaghetti and tangle detection (Notebookcheck; firmware v01.01.16.40 changelog). (6) Purge waste volume — 3DwithUS: on a 4-colour Gengar print "the purge waste was considerable though, almost the same amount as the model itself"[214][41][196][19] | Owner-reported: (a) extruder gears skipping/jamming momentarily, causing rips in prints — the reporting owner later attributed it to Creality Hyper PLA and resolved it by changing filament brand; (b) clogging with multiple components replaced under warranty; (c) firmware V2.3.6.66 locking the UI into Chinese with no reachable language selector[246] |
| Spare parts availability & pricing (nozzle, hotend, plate, board, belts) | Good and CC2-specific, ordered direct from Elegoo US. Verified live prices (2026-08-19): 0.4 mm brass/hardened-steel nozzle kit $22.99; multi-size (0.2/0.4/0.6/0.8) nozzle kit $24.99; dual-sided build plate $22.99 (3-pack $39.99); ceramic heater (CC2) $9.99; thermistor (CC2) $9.99; hotend silicone sock ×3 (CC2) $9.99; composite HEPA+carbon filter ×3 (CC2) $24.99; auxiliary part-cooling fan (CC2) $28.99; 3010 axial fan $12.99; dual extruder gears $14.99; strain gauge $12.99; spool holder (CC2 Combo) $21.99, set of 4 $45.99; spool claws ×3 $10.99; anti-vibration feet ×4 (CC2) $11.99; CANVAS module $150 (with cover) / $120 (without); Accessory Kit for Centauri Series $59.99[13] | Mixed availability, no published prices. Official K2 SE parts list has exactly 21 SKUs — verified in full: PSU kit 4004170031, mainboard 4002020086, toolhead cable 4006030062, screen kit 4001050100, screen cable 4006030063, heat-break fan 3205010476, heat sink 3205040114, extruder stepper 4004100088, toolhead board 4002010057, hotend heat-insulation sleeve x3 4004010297, model cooling fan 3205010491, hot-bed plate kit 4001040067, filament-break module 4001090036, cutter kit x3 4004010279, strain gauge 4001010038, UK/CN/US power cords 3103120074/3103120071/3103120029, tube cutter 4004010188, general tool kit 4006010067, maintenance toolkit 4006010031[247] |
| Community size (subreddit size, wiki quality, Discord/Facebook groups) | Substantial and unusually technical for a 7-month-old machine. OpenCentauri Discord ~5,800 members; ELEGOO Official Discord ~32,700 members. OpenCentauri org: 26 public repos, cosmos at 231 stars with active development through 2026-08-21, plus a full MkDocs wiki with dedicated CC2 hardware pages (mainboard, toolhead, bed, camera, screen, misc, CANVAS, docs) and a CC2 firmware archive. Elegoo maintains official GitHub repos with public issue trackers for both CC1 (25 issues, numbering to #28 because three numbers are PRs) and CC2 (11 issues, all open). Elegoo also runs official Reddit and Facebook presences[248][249][250][251][252][236] | Small. No K2 SE subreddit or dedicated wiki beyond Creality's own; Creality-forum K2 SE threads number a handful with single-digit reply counts; K2 SE threads are scattered across "Flagship K Series" and "Creality Flagship K2 Pro & K2" sub-forums[253] |
| Mod/upgrade ecosystem | Active but CC1-weighted. CC2-applicable today: full CAD models and FDM-optimised replacement parts (OpenCentauri/cad, 465 MB repo, pushed 2026-07-06, includes a CC2 model per PR #13); printable mods, light mods and camera replacement guides; Elegoo RFID tag dumps (Elegoo-Tag-Library); CANVAS retrofit onto CC1; printable spool holders (Tom's used a Voron-derived design after breaking his). Not yet CC2-ready: OpenCentauri patched firmware (CC1 only), COSMOS (CC2 support merged 2026-07-01 but "untested" and not endorsed in the FAQ), the OpenCentauri replacement mainboard project[250][174][254][255][175] | Effectively none for the K2 SE. Official upgrade path is CFS (up to 4 units) and the optional K1-series AI camera[256] |
| Long-term (6–12 month) reliability reports | None exist yet. The CC2 shipped 2026-01-26, so the oldest retail units are ~7 months old at the access date. The longest documented exposure I found is 3DTechValley's "3 weeks of hands-on testing with a retail unit"; every other review is a launch-window unit tested over days. No 6-month or 12-month follow-up, durability teardown, or MTBF data exists[236][237] | Not published[257] |
| Independently Measured Performance | ||
| Dimensional accuracy measurements (third-party, with numbers) | TechRadar, calipers on a 5-step accuracy target — the only real numbers that exist. Target 25 mm → X 24.93 (−0.07), Y 24.85 (−0.15); 20 mm → X 19.97 (−0.03), Y 20.01 (+0.01); 15 mm → X 14.94 (−0.06), Y 14.95 (−0.05); 10 mm → X 9.96 (−0.04), Y 9.88 (−0.12); 5 mm → X 4.99 (−0.01), Y 5.01 (+0.01). X mean error 0.042 mm; Y mean error 0.068 mm; combined mean 0.055 mm. Scored 5/5. Elegoo's claim is ±0.1 mm[73] | Not published[258] |
| Surface quality / VFA / ringing assessments | The only structured test scores it poorly, while every impressionistic review praises it. TechRadar's sub-scores: Fine flow control 5/5, Fine negative features 5/5, Bridging 5/5, Overhangs 4/5, but XY resonance 2.5/5 and Z-axis alignment 2.5/5. Against that: Tom's "no color bleeding using the default purge values"; CreativeBloq "layer lines are barely visible, corners and edges are sharp" and "very few of those annoying wispy bits of filament"; 3DwithUS "All lettering came out sharp and clearly defined" at 0.08 mm; TechRadar's own prose "The multifilament printing quality is exceptionally good, with clean lines"[73][49] | Not published[259] |
| Benchmark print times (source + settings) | Tom's Hardware is the only outlet that published settings alongside times: 7× Baby Chameleon (multicolour PLA, 0.2 mm, 160 mm/s avg) 4 h 55 min; Slinky Fidget (PETG, 4 walls, 50 % infill, 0.2 mm, 150 mm/s avg) 4 h 20 min; TPU Air Duster (TPU 95A, 0.12 mm, 50 mm/s) ~2 h; RC Death Racer part (Bambu PAHT-CF, 0.2 mm, 100 mm/s) 2 h 12 min; 7× Utility Knife (Prusa PC Blend, 0.2 mm, 100 mm/s) 6 h 06 min; Voron spool holders (Polymax PC, 5 walls, 0.2 mm, 100 mm/s) 2 h 36 min. 3DwithUS: 4-colour Gengar, 0.14 mm, 4 colours, ~5 in tall, ~14 h; HueForge wall art, 0.08 mm, 100 % infill, lowest speed, ~80 % of the bed, ~6 h; multicolour Benchy ~2 h; "Little Buddha" ~35 min; Elegoo name tag (2 colours) ~1 h. Notebookcheck: average colour change ≈ 1 min 10 s (74 and 78 colour changes on two test models)[49][224] | Not established[260] |
| First-layer consistency reports | Leaning positive with one specific measured defect. Notebookcheck: "The default z offset is a bit too low resulting in wavy first layers, but lowering the bed by 0.025 mm fixes that." Against that: CreativeBloq "Bed adhesion was excellent, using the textured side of the plate, but not so strong that removal posed any issues"; Tom's reports no first-layer problems across six materials but lists "a cold plate that could use more grip" as a quirk; Notebookcheck also needed a 10-minute 110 °C bed preheat for ASA adhesion[224] | Not published[261] |
| Review scores from major outlets (list outlet + score + date) | TechRadar Pro 4.25/5 (Alastair Jennings, 2026-01-28) — sub-scores Value 5, Design 4, Features 4.5, Performance 4.5 (these four average 4.5, not the 4.25 TechRadar publishes as its headline — a second arithmetic inconsistency in the same review, alongside the "29 out of 30" problem in E5). Tom's Hardware 4/5 (Denise Bertacchi, 2026-02-18). CreativeBloq 9/10 (Rob Redman). 3DwithUS 4.4/5 (Phil Macey, 2026-02-09). GamesRadar+ 5/5 (Benjamin Abbott). Notebookcheck — reviewed 2026-03-02, no numeric score extracted; verdict "Solid entryway into the world of multi-color printing … the hardware is on point but the software needs more tuning". Hackster.io (2026-01-26) and VoxelMatters — positive, unscored[49] | No scored review from any major outlet exists. All3DP: news article only (Matthew Mensley, Mar 2 2026), no score. LayerDepth: assigns the K2 SE no score of its own — it reports a *mined Amazon star trend* (3.0 in "Q1 2025" → 4.5 "Q3 2025" → 5.0 "Q1 2026") from 30 Amazon + 21 Google Shopping reviews, on a page that says outright "We do not fabricate hands-on testing"; the earliest quarter predates the product's existence. Creality's own store page shows 0 reviews, 0.0/5[262] |
Manufacturer claims, independent measurements, packages and test conditions retain their source wording. FDM linear speed and resin vertical speed use different units and are not directly comparable. Unknown values are marked “Not documented”. Prices and source dates remain historical snapshots; check the linked guide for product details. Differences highlight text, not a universal winner.
Sources for this comparison
- firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2.json; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json; firmware/CentauriCarbon2/README.md L9; docs docs.opencentauri.cc · 2026-08 · doc
- firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2.json; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json; firmware/CentauriCarbon2/README.md L9; docs us.elegoo.com · 2026-08 · doc
- creality.com/products/k2-se; store.creality.com/products/k2-se-combo-3d-printer; creality.com/support/k2-se; docs/k2_se_user_manual_en.pdf (PDF Title K2 SE-SM-001_说明书(EN) project evidence · 2026-08 · local
- https://tools.prnewswire.com/en-us/live/20813/release/20260119EN65865; https://www.voxelmatters.com/elegoo-debuts-centauri-carbon-2-combo-an-enclosed-multicolor-desktop-3 tools.prnewswire.com · 2026-08 · doc
- https://tools.prnewswire.com/en-us/live/20813/release/20260119EN65865; https://www.voxelmatters.com/elegoo-debuts-centauri-carbon-2-combo-an-enclosed-multicolor-desktop-3 voxelmatters.com · 2026-08 · doc
- https://tools.prnewswire.com/en-us/live/20813/release/20260119EN65865; https://www.voxelmatters.com/elegoo-debuts-centauri-carbon-2-combo-an-enclosed-multicolor-desktop-3 tomshardware.com · 2026-08 · doc
- https://tools.prnewswire.com/en-us/live/20813/release/20260119EN65865; https://www.voxelmatters.com/elegoo-debuts-centauri-carbon-2-combo-an-enclosed-multicolor-desktop-3 hackster.io · 2026-08 · doc
- all3dp.com/4/crealitys-new-k2-se-might-be-a-smarter-buy-than-the-k1c/ ("First shown at the IFA Berlin consumer technology show last year", pub. Mar 2 2026 — verified verb project evidence · 2026-08 · local
- https://www.voxelmatters.com/elegoo-debuts-centauri-carbon-2-combo-... (full regional table, FX dated 2026-01-24/25); https://www.hackster.io/news/... ("United States: $4 voxelmatters.com · 2026-08 · doc
- https://www.voxelmatters.com/elegoo-debuts-centauri-carbon-2-combo-... (full regional table, FX dated 2026-01-24/25); https://www.hackster.io/news/... ("United States: $4 hackster.io · 2026-08 · doc
- Searched Creality newsroom, 3DPrintingIndustry, Tom's Hardware, All3DP, Notebookcheck for a K2 SE launch price project evidence · 2026-08 · local
- ELEGOO Centauri Carbon 2 Combo Shopify product JSON (price and store publish date) us.elegoo.com · 2026-08 · vendor
- https://us.elegoo.com/products/centauri-carbon-2-combo (raw HTML → evidence/elegoo_official_product_page.md); https://us.elegoo.com/products/centauri-carbon-2-combo.json us.elegoo.com · 2026-08 · doc
- https://us.elegoo.com/products/centauri-carbon-2-combo (raw HTML → evidence/elegoo_official_product_page.md); https://us.elegoo.com/products/centauri-carbon-2-combo.json notebookcheck.net · 2026-08 · doc
- store.creality.com; store.creality.com/collections/k2-series (fetched 2026-08-19: "K2 SE 3D Printer — From 279.00"); amazon.com listings B0FZT1338L / B0FZHSMH7F; tomshard project evidence · 2026-08 · local
- ELEGOO Centauri Carbon 2 product page (Centauri Carbon 2 vs Centauri Carbon side-by-side table) us.elegoo.com · 2026-08 · vendor
- evidence/elegoo_cc2_vs_cc1_official_comparison.md; https://us.elegoo.com/collections/all/products.json; https://us.elegoo.com/products/centauri-carbon-2; https://us.elego us.elegoo.com · 2026-08 · doc
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json + sibling profiles re-fetched from CrealityOfficial/CrealityPrint@master/resources/profiles/Creality/machine/ (Crealit project evidence · 2026-08 · local
- https://us.elegoo.com/collections/all/products.json; https://docs.opencentauri.cc/software/updates-cc2/; hackster.io ("closest competitors are the Bambu Lab P1S Combo and docs.opencentauri.cc · 2026-08 · doc
- all3dp.com K2 SE article ("pushes the price lower, ditching the walls and door"); creality.com/products/k2-se; store.creality.com/collections/k2-series (all K2-family pri project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L11–13, L41–42, L67–68, L94–95; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json project evidence · 2026-08 · local
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json; manual p.02 "Max. Build Dimensions 220*215*245mm"; store spec table project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md; docs/CC2_manual_EN.pdf p.01; tomshardware.com; voxelmatters.com; evidence/elegoo_cc2_vs_cc1_official_comparison.md project evidence · 2026-08 · local
- manual p.02 "Dimensions 355*355*482mm"; creality.com/support/k2-se params → Design & Build → "Printer Dimension 355*355*482 mm" (evidence/creality_support_k2se.html, foun project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md; docs/CC2_manual_EN.pdf p.01; tomshardware.com ("19.35 kg / 42.65 lbs"); techradar.com body ("42.66 lb"); notebookcheck.net ("abo project evidence · 2026-08 · local
- manual p.02 "Machine Weight 10.58kg"; store "Printer Net Weigh 10.58 kg"; creality.com/support/k2-se params → "Net Weight: 10.58 KG" (third official source, added) project evidence · 2026-08 · local
- store.creality.com K2 SE marketing copy project evidence · 2026-08 · local
- tomshardware.com ("fully enclosed … glass front door … a very large 'top hat'"); techradar.com ("Perspex top … essentially making it almost airtight"); evidence/elegoo_of project evidence · 2026-08 · local
- creality.com/products/k2-se (SEO title "K2 SE Open-frame Multicolor 3D Printer"); store badge "Open-Frame"; creality.com/support/k2-se params → "Frame: Open" ; all3dp.com project evidence · 2026-08 · local
- https://www.youtube.com/watch?v=xp-jQ7dljV0 at 18:25-19:05 and 26:35 (Aurora Tech, evidence/auroratech_cc2_combo_transcript.md); firmware/CentauriCarbon2/debugfile_printe youtube.com · 2026-08 · doc
- https://www.youtube.com/watch?v=xp-jQ7dljV0 at 18:25-19:05 and 26:35 (Aurora Tech, evidence/auroratech_cc2_combo_transcript.md); firmware/CentauriCarbon2/debugfile_printe github.com · 2026-08 · doc
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json; all filament profiles carry chamber_temperature = 0 project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L6; corroborated by tomshardware.com, techradar.com, notebookcheck.net project evidence · 2026-08 · local
- creality.com/support/k2-se spec table "Motion System: CoreXY"; manual 6.2.1 lubrication diagram (separate X-axis and Y-axis shafts, three Z shafts + lead screws) project evidence · 2026-08 · local
- manual 6.2.1 lubrication diagram, evidence/k2_se_user_manual_en.txt project evidence · 2026-08 · local
- docs/CC2_BOM.pdf (Y光轴, Y光轴固定钣金, Y轴光轴固定块, Y轴轴承固定钣金); tomshardware.com project evidence · 2026-08 · local
- manual 6.2.1 lubrication diagram project evidence · 2026-08 · local
- docs/CC2_BOM.pdf; firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L38, L64 project evidence · 2026-08 · local
- Searched official parts list (21 SKUs — no belt SKU), store page, wiki service pages, and third-party coverage project evidence · 2026-08 · local
- docs/CC2_BOM.pdf; https://us.elegoo.com/products/centauri-carbon-2-combo ("Dual 4260 stepper motors"); https://docs.opencentauri.cc/hardware/CC2/toolhead/ ("10T NEMA14 (r docs.opencentauri.cc · 2026-08 · doc
- docs/CC2_BOM.pdf; https://us.elegoo.com/products/centauri-carbon-2-combo ("Dual 4260 stepper motors"); https://docs.opencentauri.cc/hardware/CC2/toolhead/ ("10T NEMA14 (r docs.opencentauri.cc · 2026-08 · doc
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list; store spec table project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L47–58 (X), L73–84 (Y), L100–110 (Z), L145–152 (E); https://docs.opencentauri.cc/hardware/CC2/mainboard/ ("Stepper driv docs.opencentauri.cc · 2026-08 · doc
- Searched parts list, both GPL repos, and all third-party coverage project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L37, L51 (X); L63, L77 (Y); L89, L104 (Z); L119, L148 (E) project evidence · 2026-08 · local
- No K2 SE printer.cfg published (see finding 2); OTA image not extracted per policy project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md; docs/CC2_manual_EN.pdf p.01; tomshardware.com; techradar.com; notebookcheck.net; voxelmatters.com project evidence · 2026-08 · local
- creality.com/support/k2-se; store spec table + hero copy "Max Speed: 500 mm/s*... *Data from Creality Lab" project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md; tomshardware.com (per-print average speeds); https://3dwithus.com/elegoo-centauri-carbon-2-combo-3d-printer-review 3dwithus.com · 2026-08 · doc
- firmware/crealityprint_process_K2SE_0.20mm.json project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L7, L9; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json project evidence · 2026-08 · local
- firmware/crealityprint_process_K2SE_0.20mm.json; firmware/crealityprint_machine_K2_SE_0.4nozzle.json project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md (both rows present); evidence/elegoo_cc2_vs_cc1_official_comparison.md project evidence · 2026-08 · local
- store.creality.com spec table + "Max Acceleration: 20000 mm/s2*" (footnoted "* Data from Creality Lab" — verified verbatim); creality.com/support/k2-se params → "Accelera project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L7, L9 project evidence · 2026-08 · local
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L8, L10; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json (incl. machine_start_gcode) project evidence · 2026-08 · local
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json; firmware/crealityprint_process_K2SE_0.20mm.json project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L14; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json project evidence · 2026-08 · local
- firmware/ElegooSlicer_ECC2/Elegoo_{PLA,ABS,PC,PLA-CF,PETG-CF,PETG,PET-CF,PAHT-CF,TPU_95A}_@ECC2.json (filament_max_volumetric_speed) project evidence · 2026-08 · local
- firmware/crealityprint_filament_K2SE_HyperPLA.json ("23");..._HyperABS.json ("23");..._GenericPLA.json ("14");..._GenericABS.json ("12");..._GenericASA.json ("12");..._HP project evidence · 2026-08 · local
- — project evidence · 2026-08 · local
- Searched My Tech Fun, 3DPrintBeginner, CNC Kitchen, All3DP, Tom's Hardware for a K2 SE flow test project evidence · 2026-08 · local
- https://www.creativebloq.com/3d/3d-printing/i-tested-the-elegoo-centauri-carbon-2-and-now-i-want-to-print-everything-in-multicolour-glory; https://3dwithus.com/elegoo-cen creativebloq.com · 2026-08 · doc
- https://www.creativebloq.com/3d/3d-printing/i-tested-the-elegoo-centauri-carbon-2-and-now-i-want-to-print-everything-in-multicolour-glory; https://3dwithus.com/elegoo-cen voxelmatters.com · 2026-08 · doc
- https://www.creativebloq.com/3d/3d-printing/i-tested-the-elegoo-centauri-carbon-2-and-now-i-want-to-print-everything-in-multicolour-glory; https://3dwithus.com/elegoo-cen smith3d.com · 2026-08 · doc
- layerdepth.com/reviews/creality-k2-se/ (self-declared non-hands-on); other content-farm pages claim "Benchy in 14 min" with no method, settings or evidence project evidence · 2026-08 · local
- store.creality.com spec table "Input Shaping\ project evidence · 2026-08 · local
- Official 21-SKU parts list contains no accelerometer/resonance-sensor SKU; no K2 SE printer.cfg; no teardown project evidence · 2026-08 · local
- manual 6.1 Maintenance Items, evidence/k2_se_user_manual_en.txt project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L277–282, L292–300 project evidence · 2026-08 · local
- Requires printer.cfg (not published) or a rooted printer (no K2 SE root method exists) project evidence · 2026-08 · local
- https://www.techradar.com/pro/elegoo-centauri-carbon-2-combo-3d-printer-review (per-test scores: Dimensional accuracy 5, Fine flow control 5, Fine negative features 5, Ov techradar.com · 2026-08 · doc
- No ringing/VFA test of the K2 SE found from any measuring outlet project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L135; firmware/ElegooSlicer_ECC2/*_@ECC2.json (enable_pressure_advance: ['1']) project evidence · 2026-08 · local
- firmware/crealityprint_filament_K2SE_GenericPLA.json ("enable_pressure_advance": "1"), and..._GenericABS/ASA/PETG/TPU,..._HP-ASA (all "1") project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L135; firmware/ElegooSlicer_ECC2/Elegoo_ABS_@ECC2.json, Elegoo_PC_@ECC2.json, Elegoo_PAHT-CF_@ECC2.json, Elegoo_TPU_95A project evidence · 2026-08 · local
- firmware/crealityprint_filament_K2SE_HyperPLA.json ("enable_pressure_advance": "0", "pressure_advance": "0.05");..._HyperABS.json ("0"/0.02);..._HP-TPU.json ("0"/0.4);... project evidence · 2026-08 · local
- Store lists on-screen auto-calibration for "leveling and fan calibration" only; manual 6.1 lists leveling, self-test and vibration optimisation — no PA routine project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L517–588 ([load_cell_probe], sclk_pin=bed_sensor:PA5, dout_pin=bed_sensor:PA4); https://docs.opencentauri.cc/hardware/C docs.opencentauri.cc · 2026-08 · doc
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list (SKU 4001010038 Strain Gauge_Leveling Sensor); wiki.creality.com/en/k2-flagship-series/k2-se/replace-strain-gauge project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L136–142; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json project evidence · 2026-08 · local
- Requires printer.cfg (not published) project evidence · 2026-08 · local
- store spec table "Extruder\ project evidence · 2026-08 · local
- Searched store, support page, manual, all wiki service pages, parts list project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L123 (filament_diameter=1.75); evidence/elegoo_official_product_page.md; docs/CC2_manual_EN.pdf project evidence · 2026-08 · local
- creality.com/support/k2-se "Filament Diameter: 1.75 mm"; firmware/crealityprint_filament_K2SE_GenericPLA.json ("filament_diameter": "1.75") project evidence · 2026-08 · local
- manual 3.2 and 4.1; wiki.creality.com/en/k2-flagship-series/k2-se/replace-extruder ("Press the tube connector and pull out the PTFE tube") project evidence · 2026-08 · local
- Searched: evidence/elegoo_official_product_page.md, docs/CC2_manual_EN.pdf, evidence/elegoo_cc2_vs_cc1_official_comparison.md, all eight reviews, and OpenCentauri's toolh project evidence · 2026-08 · local
- Not published on any Creality page fetched project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L431–436 ([filament_load_unload]); L344–366 ([canvas_dev] pre_load_fila_dist=150, load_fila_dist=1000, unload_fila_dist project evidence · 2026-08 · local
- manual 3.2 steps 3-4; 4.3 ("push it in gently, and let go after feeling the pulling force. The filament will be automatically loaded") project evidence · 2026-08 · local
- https://docs.opencentauri.cc/hardware/CC2/toolhead/ ("The Toolhead board has a 2x4 pin port at the bottom. This connector links to a separate PCB that breaks out the requ us.elegoo.com · 2026-08 · doc
- wiki.creality.com/en/k2-flagship-series/k2-se/replace-hotend;.../replace-nozzle; store hero "Quick-Swap Nozzle" project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L126, L133–134; firmware/CentauriCarbon2/debugfile_printer.cfg L119, L125–126; https://github.com/elegooofficial/Centau github.com · 2026-08 · doc
- creality.com/support/k2-se; store spec table; manual p.02 "Max. Nozzle Temperature 300C" project evidence · 2026-08 · local
- Parts list documents the hotend kit and heater wires but states no wattage; not on store/support pages project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/replace-hotend project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L122 (nozzle_diameter=0.4); evidence/elegoo_official_product_page.md (spec "Nozzle Diameter 0.4 mm"; "What's in the Box project evidence · 2026-08 · local
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json (printer_variant: "0.4"); Creality Print profile listing shows only "Creality K2 SE 0.4 nozzle" whereas K2/K2 Pro/K2 P project evidence · 2026-08 · local
- https://us.elegoo.com/products/0-4-mm-brass-hardened-steel-nozzle-kit-for-centauri-carbon-series; docs/CC2_BOM.pdf (黄铜硬化钢喷嘴); evidence/elegoo_official_product_page.md ("N us.elegoo.com · 2026-08 · doc
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json ("nozzle_type": "hardened_steel", "nozzle_hrc": "0") project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/replace-nozzle ("Use the socket wrench to rotate the old nozzle counterclockwise"); manual p.03 packing list item 6 "M6 Sock project evidence · 2026-08 · local
- https://us.elegoo.com/products/multi-size-brass-hardened-steel-nozzle-kit-for-centauri-carbon-series; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2.json (nozzle_dia us.elegoo.com · 2026-08 · doc
- Creality Print ships only 0.4 mm machine/process/filament profiles for this model (verified via the GitHub tree API: 2 machine, 3 process, 20 filament files, all "0.4 noz project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md ("Heat Break: Titanium Alloy"); evidence/elegoo_cc2_vs_cc1_official_comparison.md; https://docs.opencentauri.cc/hardware/CC2/ ("H docs.opencentauri.cc · 2026-08 · doc
- Wiki procedures describe a heat break with thermal paste and a silicone sleeve, but never state whether a PTFE liner reaches the melt zone; creality.com/support/k2-se has project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L163–165; evidence/elegoo_official_product_page.md; docs/CC2_manual_EN.pdf p.01 project evidence · 2026-08 · local
- creality.com/support/k2-se; store spec table; manual p.02 "Max. Heated Bed Temperature 100C" project evidence · 2026-08 · local
- https://docs.opencentauri.cc/hardware/CC2/bed/ ("Danger: The Bed runs on mains AC current at 110/220 V"; "the CC2 uses a solid state relay (SSR) board to control the main west3d.com · 2026-08 · doc
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list — SKU 4001040067 K2 SE Hot Bed Plate Kit_24_280_235×235×3 (all 21 SKUs re-extracted verbatim) project evidence · 2026-08 · local
- Searched all eight CC2 reviews (Tom's, TechRadar, Notebookcheck, Hackster, GamesRadar, 3DwithUS, CreativeBloq, VoxelMatters) plus general web search project evidence · 2026-08 · local
- No measured heat-up figure from any outlet; not claimed by Creality project evidence · 2026-08 · local
- manual 6.2.2; store spec "Build Plate\ project evidence · 2026-08 · local
- https://us.elegoo.com/products/pei-plate-for-centauri-carbon ("Enhance your 3D prints with a dual-sided plate that delivers strong adhesion for PLA and a premium carbon f us.elegoo.com · 2026-08 · doc
- manual 6.2.2 ("https://vip.creality.com/en/goods-detail/2105 for purchase"); parts list SKU 4001040067 vip.creality.com · 2026-08 · doc
- Searched all eight CC2 reviews plus targeted web searches for thermal-camera/FLIR bed-uniformity tests of the CC2; also checked My Tech Fun's bed-heating comparison work project evidence · 2026-08 · local
- No thermal-imaging test of the K2 SE found project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list;.../replace-strain-gauge ("Install the new strain gauge with the white adhesive side facing up"; sits under the h project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L589–604; firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json project evidence · 2026-08 · local
- Requires printer.cfg [bed_mesh] probe_count (not published); not stated on store/support/wiki project evidence · 2026-08 · local
- store spec "Leveling Mode\ project evidence · 2026-08 · local
- docs/CC2_manual_EN.pdf (assembly section — "remove the foam … marked in blue to unlock the heated bed"; no levelling-screw procedure); tomshardware.com ("After unpacking project evidence · 2026-08 · local
- Manual's unboxing shows removal of three shipping screws (a, b, c) but documents no leveling knobs; parts list has no knob/spring SKU project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg (complete section list contains no [z_tilt]/[quad_gantry_level]); single [stepper_z] at L85; tomshardware.com ("three l project evidence · 2026-08 · local
- No published printer.cfg; no routine documented on screen or in the manual project evidence · 2026-08 · local
- firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json (machine_start_gcode); firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L644+ ([g180] S7/S8/S910/S91 project evidence · 2026-08 · local
- manual 4.5 and 3.3; store hero copy project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list; store marketing copy; manual 3.3 project evidence · 2026-08 · local
- notebookcheck.com article 1248639 ("Filament detection sensors for failure/tangling prevention"); Creality's own store/support/wiki pages describe only a run-out sensor a project evidence · 2026-08 · local
- Not claimed on any official page; manual treats extruder blockage as a manual maintenance task ("Solution to extruder blockage:... poke into the extruder... using an extr project evidence · 2026-08 · local
- firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json (machine_pause_gcode, change_filament_gcode, machine_start_gcode M6211 A1 L200 …); firmware/CentauriCa project evidence · 2026-08 · local
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json; manual 3.2 project evidence · 2026-08 · local
- manual 2.1 step 2 and 3.2; store "Optional Accessories" project evidence · 2026-08 · local
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json; store spec "CFS Compatibility\ project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list; wiki replace-hotend/replace-extruder refer to a single "model fan" cable project evidence · 2026-08 · local
- https://docs.opencentauri.cc/hardware/CC2/misc/ ("Auxiliary fan type: Custom 12032 radial fan … P/N EFC-12J24H … 0.8 A @ 24 V … mounted on the left panel with intake from docs.opencentauri.cc · 2026-08 · doc
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json; filament profiles set additional_cooling_fan_speed = 0 project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list;.../replace-hotend project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L198–212 ([cavity_fan]), L302–316 ([servo printer_servo]); https://docs.opencentauri.cc/hardware/CC2/misc/ ("The exhaus us.elegoo.com · 2026-08 · doc
- store.creality.com spec table; creality.com/support/k2-se params → Functionality → "Air Filter: No" (evidence/creality_support_k2se.html — present in the report's own dow project evidence · 2026-08 · local
- Parts list has no board-cooling fan SKU; camera-install instructions confirm the mainboard sits under a removable bottom panel project evidence · 2026-08 · local
- store marketing copy ("auto-calibrations such as leveling and fan calibration"); vendor profile fan_max_speed 100 / fan_min_speed 100 (PLA) project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list; creality.com/support/k2-se firmware download URLs (file2-cdn.creality.com/.../CR4CU220812S11_ota_img_V2.3.6.43.i project evidence · 2026-08 · local
- https://docs.opencentauri.cc/hardware/CC2/mainboard/ ("SoC AllWinner R528-S3; Memory 128 MB in-chip; Storage 8 gb eMMC"); https://raw.githubusercontent.com/OpenCentauri/o raw.githubusercontent.com · 2026-08 · doc
- store spec "File Storage\ project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list (PSU SKU; bed SKU..._24_280_...; fans..._24V) project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md ("Power Input: 100–240 VAC 50/60 Hz"); docs/CC2_manual_EN.pdf p.01; techradar.com ("Input Power: AC 100–240 V, 50/60 Hz"); notebo project evidence · 2026-08 · local
- manual 2.1 ("If the mains between 100V and 120V, please select the 115V for the power supply switch with a straight screwdriver... default is 230V"); manual p.02; store " project evidence · 2026-08 · local
- manual p.02 "Rated Power 350W"; store & support spec tables project evidence · 2026-08 · local
- manual 1.1 machine diagram ("UsB flash disk port", "485Communication Interface", "Power socket switch", "Toggle Switch") + 4.1; forum.creality.com/t/k2se-camera/47535 (po project evidence · 2026-08 · local
- firmware/CentauriCarbon2/README.md; firmware/CentauriCarbon2/debugfile_printer_dsp.cfg (whole file); firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json ( github.com · 2026-08 · doc
- firmware/CentauriCarbon2/README.md; firmware/CentauriCarbon2/debugfile_printer_dsp.cfg (whole file); firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json ( freethecode.lol · 2026-08 · doc
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json ("gcode_flavor": "klipper" — the only file-derived element); creality.com/support/k2-se firmwareList (both CR4CU220812 project evidence · 2026-08 · local
- https://github.com/elegooofficial/CentauriCarbon2 (API: created 2026-03-11T10:10:07Z, pushed 2026-03-12T08:19:55Z, 3 commits, license GPL-3.0); https://github.com/elegooo github.com · 2026-08 · doc
- https://github.com/elegooofficial/CentauriCarbon2 (API: created 2026-03-11T10:10:07Z, pushed 2026-03-12T08:19:55Z, 3 commits, license GPL-3.0); https://github.com/elegooo github.com · 2026-08 · doc
- https://github.com/elegooofficial/CentauriCarbon2 (API: created 2026-03-11T10:10:07Z, pushed 2026-03-12T08:19:55Z, 3 commits, license GPL-3.0); https://github.com/elegooo github.com · 2026-08 · doc
- https://github.com/elegooofficial/CentauriCarbon2 (API: created 2026-03-11T10:10:07Z, pushed 2026-03-12T08:19:55Z, 3 commits, license GPL-3.0); https://github.com/elegooo all3dp.com · 2026-08 · doc
- GitHub tree API for CrealityOfficial/K2_Series_Klipper (truncated: false) — config dirs are only F008, F008_CR0CN240319C13, F012_CR0CN200400C10, F021_CR0CN200400C10; Crea project evidence · 2026-08 · local
- https://docs.opencentauri.cc/software/updates-cc2/ ("v02.00.02.00 (Released 28/05/2026) … SSH disabled — This release removes the SSH process entirely, making it more dif docs.opencentauri.cc · 2026-08 · doc
- https://docs.opencentauri.cc/software/updates-cc2/ ("v02.00.02.00 (Released 28/05/2026) … SSH disabled — This release removes the SSH process entirely, making it more dif docs.opencentauri.cc · 2026-08 · doc
- https://docs.opencentauri.cc/software/updates-cc2/ ("v02.00.02.00 (Released 28/05/2026) … SSH disabled — This release removes the SSH process entirely, making it more dif github.com · 2026-08 · doc
- https://docs.opencentauri.cc/software/updates-cc2/ ("v02.00.02.00 (Released 28/05/2026) … SSH disabled — This release removes the SSH process entirely, making it more dif docs.opencentauri.cc · 2026-08 · doc
- pellcorp/creality tree (ships rpi/printers/creality-k1se.cfg; no K2 SE entry); jamincollins/k2-improvements README (instructions are explicitly "on the K2 Plus"); Guilouz project evidence · 2026-08 · local
- firmware/CentauriCarbon2/ipkg-build_run_printer.sh (elegoo_printer … -a /tmp/elegoo_uds); firmware/CentauriCarbon2/debugfile_printer.cfg L11–12 (broker_address=tcp://brok docs.opencentauri.cc · 2026-08 · doc
- firmware/CentauriCarbon2/ipkg-build_run_printer.sh (elegoo_printer … -a /tmp/elegoo_uds); firmware/CentauriCarbon2/debugfile_printer.cfg L11–12 (broker_address=tcp://brok github.com · 2026-08 · doc
- firmware/CentauriCarbon2/ipkg-build_run_printer.sh (elegoo_printer … -a /tmp/elegoo_uds); firmware/CentauriCarbon2/debugfile_printer.cfg L11–12 (broker_address=tcp://brok github.com · 2026-08 · doc
- Guilouz/Mainsail-K2 and BusPirateV5/Mainsail-K2 exist but are described as "Mainsail for Creality K2 Series" (T113 platform); no K2 SE support stated project evidence · 2026-08 · local
- https://docs.opencentauri.cc/patched-firmware/features/; https://github.com/OpenCentauri/cc-fw-tools; https://github.com/OpenCentauri/cosmos; https://github.com/OpenCenta docs.opencentauri.cc · 2026-08 · doc
- https://docs.opencentauri.cc/patched-firmware/features/; https://github.com/OpenCentauri/cc-fw-tools; https://github.com/OpenCentauri/cosmos; https://github.com/OpenCenta github.com · 2026-08 · doc
- https://docs.opencentauri.cc/patched-firmware/features/; https://github.com/OpenCentauri/cc-fw-tools; https://github.com/OpenCentauri/cosmos; https://github.com/OpenCenta github.com · 2026-08 · doc
- https://docs.opencentauri.cc/patched-firmware/features/; https://github.com/OpenCentauri/cc-fw-tools; https://github.com/OpenCentauri/cosmos; https://github.com/OpenCenta github.com · 2026-08 · doc
- https://docs.opencentauri.cc/patched-firmware/features/; https://github.com/OpenCentauri/cc-fw-tools; https://github.com/OpenCentauri/cosmos; https://github.com/OpenCenta github.com · 2026-08 · doc
- https://docs.opencentauri.cc/patched-firmware/features/; https://github.com/OpenCentauri/cc-fw-tools; https://github.com/OpenCentauri/cosmos; https://github.com/OpenCenta github.com · 2026-08 · doc
- https://docs.opencentauri.cc/patched-firmware/features/; https://github.com/OpenCentauri/cc-fw-tools; https://github.com/OpenCentauri/cosmos; https://github.com/OpenCenta github.com · 2026-08 · doc
- Searched GitHub repository search and the wider web; K2-family projects found are jamincollins/k2-improvements (K2 Plus), Guilouz/Mainsail-K2, TheIncompetentCraftsman/Cre project evidence · 2026-08 · local
- creality.com/support/k2-se; forum.creality.com/t/k2se-firmware-upgrade/51367 (users report USB flashing; "Try using a smaller capacity USB stick. Mine was 16GB. FAT32 wit project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L644+ ([g180] table), L307–316 (M2801_*), L329, L399, L424 and L432–435 (M2202 gcode_action_report=… in the CANVAS-runo docs.opencentauri.cc · 2026-08 · doc
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json (machine_start_gcode, machine_end_gcode, machine_pause_gcode, change_filament_gcode) project evidence · 2026-08 · local
- https://docs.opencentauri.cc/software/updates-cc2/ (SSH removal + downgrade block + repacked v01.03.02.51 download); https://docs.opencentauri.cc/patched-firmware/ (CC2 n github.com · 2026-08 · doc
- Full-text search of the 29-page manual (evidence/k2_se_user_manual_en.txt): zero hits for "root", "SSH", "telnet", "developer". All 11 K2 SE wiki sub-pages enumerated liv project evidence · 2026-08 · local
- firmware/CentauriCarbon2/ipkg-build_readme.md; firmware/CentauriCarbon2/ipkg-build_run_printer.sh L13–15; firmware/CentauriCarbon2/ipkg-build_update_ipk.sh; firmware/Cent docs.opencentauri.cc · 2026-08 · doc
- No K2 SE rootfs artefact may be opened (policy: no image extraction); no teardown; no rooted owner report; host SoC/RAM already at M2 project evidence · 2026-08 · local
- https://raw.githubusercontent.com/OpenCentauri/oc-linux/opencentauri/arch/arm/configs/sun8iw20p1smp_defconfig and.../sun8iw20p1smp_t113_auto_defconfig (grep: no CONFIG_TU raw.githubusercontent.com · 2026-08 · doc
- Guilouz/Creality-Helper-Script-Wiki discussion #497 (feature request "Tailscale support"), maintainer reply verbatim: *"It's not a Debian here, Creality use a buildroot O project evidence · 2026-08 · local
- Same searches as N8; no K2 SE port scan, rooted unit or owner report found; nothing in the manual's Settings walkthrough (3.1: Home / Adjustment / Files / Function settin project evidence · 2026-08 · local
- Requires root or image extraction — neither available (policy forbids extracting firmware/CR4CU220812S11_ota_img_V2.3.6.49.img) project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md ("5-inch Color Capacitive Touch Screen"); https://docs.opencentauri.cc/hardware/CC2/screen/ ("The CC2 touchscreen is 5.0 inches, docs.opencentauri.cc · 2026-08 · doc
- evidence/elegoo_official_product_page.md ("5-inch Color Capacitive Touch Screen"); https://docs.opencentauri.cc/hardware/CC2/screen/ ("The CC2 touchscreen is 5.0 inches, github.com · 2026-08 · doc
- evidence/elegoo_official_product_page.md ("5-inch Color Capacitive Touch Screen"); https://docs.opencentauri.cc/hardware/CC2/screen/ ("The CC2 touchscreen is 5.0 inches, github.com · 2026-08 · doc
- store & support spec tables ("3.97-inch color touchscreen"); wiki.creality.com/en/k2-flagship-series/k2-se/parts-list SKU 4001050100 Touch Screen Kit_3.97 inch_Touch_480x project evidence · 2026-08 · local
- tomshardware.com ("nice reminder to unlock the bed", loading screens, filament naming); techradar.com; creativebloq.com ("Head to the load screen and click on reel one … github.com · 2026-08 · doc
- manual 3.1, 3.3, 4.3-4.5; store copy ("you can simply exclude it — the rest of the prints continue unaffected"); vendor profile machine_LED_light_exist: 1 project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md ("Connectivity: USB, Wi-Fi"); docs/CC2_manual_EN.pdf p.01 ("Connectivity: USB Drive, Wi-Fi") and p.02 ("USB Drive Port"); https:/ github.com · 2026-08 · doc
- store spec table; creality.com/support/k2-se params; manual p.02 spec table + 5.1.2 + 1.1 machine diagram project evidence · 2026-08 · local
- docs/CC2_manual_EN.pdf pp.19–20 ("LAN (Network) Printing … The assigned IP address will display once successfully connected … Ensure your computer and printer are on the github.com · 2026-08 · doc
- manual 5.1 (LAN Printing) and 5.2 (Creality Cloud Printing); store spec "Cloud Integration\ project evidence · 2026-08 · local
- https://docs.opencentauri.cc/hardware/CC2/camera/ (full table); evidence/elegoo_official_product_page.md ("Camera: Yes"); docs/CC2_manual_EN.pdf p.02 ("Camera"); https:// docs.opencentauri.cc · 2026-08 · doc
- store spec table + note ("This optional camera is the same model used for the K1 series AI cameras and is fully compatible with the K2 SE. The camera does not include a c project evidence · 2026-08 · local
- tomshardware.com ("excellent camera for print monitoring and AI detection"); https://www.notebookcheck.net/Elegoo-Centauri-Carbon-2-3D-printer-review-... ("Coming to the notebookcheck.net · 2026-08 · doc
- creality.com/support/k2-se params → Functionality (evidence/creality_support_k2se.html the original report tagged this row while these two official rows sat unread in its project evidence · 2026-08 · local
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json; store spec table project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L589–596 (mesh), L517–588 (probe), L292–300 (shaper_calibrate_gcode), L632–641 ([z_compensation]), L644+ ([g180] S1/S2/ creativebloq.com · 2026-08 · doc
- wiki.creality.com/en/k2-flagship-series/k2-se/replace-nozzle, /replace-hotend, /replace-extruder (all end with the identical Self-check step); store copy; manual 6.1 project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L444–445 ([pid_calibrate]), L128–131 (extruder PID), L158–161 (bed PID) project evidence · 2026-08 · local
- Not in the manual's UI walkthrough, not on store/support pages, not in any wiki page fetched project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg (searched: no flow-calibration macro); firmware/ElegooSlicer_ECC2/Elegoo_PAHT-CF_@ECC2.json (filament_flow_ratio); toms project evidence · 2026-08 · local
- Manual's UI tour lists no flow calibration; store mentions only leveling and fan calibration project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg (no tension macro); docs/CC2_manual_EN.pdf (no tensioning section); docs/CC2_BOM.pdf (tensioning springs and idler brac project evidence · 2026-08 · local
- No belt SKU in the parts list, no tensioning procedure among the K2 SE wiki service pages, nothing in the manual's maintenance table project evidence · 2026-08 · local
- firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2_0.4_nozzle.json (scan_first_layer: 1); firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L644+ ([g180] S1, S2, S911) project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg and debugfile_printer.cfg (full section lists — no skew section); docs/CC2_manual_EN.pdf project evidence · 2026-08 · local
- Not documented in manual, store, support page or any wiki page fetched project evidence · 2026-08 · local
- tomshardware.com (step-by-step; "the whole process took less than twenty minutes from unboxing to printing"); https://3dwithus.com/... ("15–20 minutes"); https://www.voxe 3dwithus.com · 2026-08 · doc
- manual 2.1-2.2; store copy ("Installing just the touchscreen and spool holder makes everything much simpler") project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L607–630 ([por] incl. charge_pin, charge_time, shutdown_pins), L223 (power_outage_enable=1) project evidence · 2026-08 · local
- manual p.02 "Power Loss Recovery: Yes"; store spec table "Power Loss Recovery\ project evidence · 2026-08 · local
- No hands-on review of the K2 SE exists (finding 3); the three owner threads discuss extruder skipping, firmware language regression and camera cabling — none mentions a p project evidence · 2026-08 · local
- manual 3.3; firmware/crealityprint_machine_K2_SE_0.4nozzle.json; creality.com/support/k2-se params → "Auto Filament Relay (With CFS): Yes" project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md (spec row "Supported Filament", incl. footnotes 3 and 4); firmware/ElegooSlicer_ECC2/Elegoo_Centauri_Carbon_2.json (default_mater api.github.com · 2026-08 · doc
- store & support spec tables; manual p.02 ("Supported Filament: Hyper PLA/PLA/TPU 95A/PETG", verified verbatim); firmware/crealityprint_machine_K2_SE.json (default_materia project evidence · 2026-08 · local
- tomshardware.com (TPU 95A print, settings and result); firmware/ElegooSlicer_ECC2/Elegoo_TPU_95A_@ECC2.json, Elegoo_PLA_@ECC2.json, Elegoo_PETG_@ECC2.json; evidence/elego project evidence · 2026-08 · local
- firmware/crealityprint_filament_K2SE_GenericPLA.json;..._HyperPLA.json;..._GenericPETG.json;..._GenericTPU.json;..._HP-TPU.json (the last three fetched) project evidence · 2026-08 · local
- https://www.youtube.com/watch?v=xp-jQ7dljV0 at 18:25-19:30 and 26:35 (Aurora Tech, Danville CA, 110-120 V; evidence/auroratech_cc2_combo_transcript.md); https://www.noteb notebookcheck.net · 2026-08 · doc
- firmware/crealityprint_filament_K2SE_GenericABS.json;..._GenericASA.json,..._HP-ASA.json,..._HyperABS.json (fetched); store/support supported-filament lists; support_cham project evidence · 2026-08 · local
- Creality Print K2 SE filament profile listing — all 20 profiles enumerated via the untruncated git trees API, none PC/PA/PAHT/PPS; "nozzle_type": "hardened_steel"; store/ project evidence · 2026-08 · local
- Synthesis of H2, I1, B5/B6, L1/L2, D8 evidence above project evidence · 2026-08 · local
- firmware/ElegooSlicer_ECC2/ (14 profiles downloaded and inspected); https://api.github.com/repos/elegooofficial/ElegooSlicer/contents/resources/profiles/Elegoo/{machine,p api.github.com · 2026-08 · doc
- CrealityOfficial/CrealityPrint@master git trees API for resources/profiles/Creality/{filament,process,machine} — truncated: false, 1441 / 288 / 148 entries scanned respec project evidence · 2026-08 · local
- No K2 SE printer.cfg published in either GPL repo (N2); the only K2 SE firmware artefact available is the 7-zip OTA image, which policy forbids extracting project evidence · 2026-08 · local
- docs/CC2_manual_EN.pdf (searched full extracted text for "FCC", "CE", "UKCA", "RoHS", "WEEE", "UL", "ETL", "certif", "complian", "declaration" — zero hits); evidence/eleg project evidence · 2026-08 · local
- Full manual text searched (evidence/k2_se_user_manual_en.txt, 29 pp.) — no certification statement; store & support pages carry none; only indirect hint is the US power-c project evidence · 2026-08 · local
- manual NOTES 1-12 and hazard panel project evidence · 2026-08 · local
- firmware/CentauriCarbon2/debugfile_printer_dsp.cfg L133–134 (extruder), L163–165 (bed), L256–258 (chamber), L437–442 ([idle_timeout]), L536–537 (probe force), L141–142 (m project evidence · 2026-08 · local
- Requires printer.cfg max_temp/min_temp values — not published; OTA image not extracted project evidence · 2026-08 · local
- Searched: https://github.com/elegooofficial/CentauriCarbon2/issues (all 11, all states); https://github.com/OpenCentauri/cc-fw-tools/issues (40 most recent); https://free github.com · 2026-08 · doc
- Searched: https://github.com/elegooofficial/CentauriCarbon2/issues (all 11, all states); https://github.com/OpenCentauri/cc-fw-tools/issues (40 most recent); https://free github.com · 2026-08 · doc
- Searched Creality forum K2 SE threads, general web; the three K2 SE owner threads report extruder skipping, a firmware language regression and camera cabling — no fire/th project evidence · 2026-08 · local
- Store & support spec tables contain no noise figure; layerdepth.com/reviews/creality-k2-se/ lists "~50dB" and attributes it to "Creality's rating, not independently verif project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md (footnote 2: "Tested with Elegoo PLA filament in Silent Mode with the auxiliary part cooling fan turned off"); firmware/CentauriC project evidence · 2026-08 · local
- firmware/crealityprint_machine_K2_SE_0.4nozzle.json ("silent_mode": "0"); creality.com/support/k2-se firmware release notes for V2.3.6.49 (evidence/creality_support_k2se. project evidence · 2026-08 · local
- Searched all eight CC2 reviews plus targeted web search for CC2 wattage/power-meter tests; evidence/elegoo_official_product_page.md; docs/CC2_manual_EN.pdf p.01 project evidence · 2026-08 · local
- Store, support and manual all state "Rated Power 350W"; no wall-meter measurement found project evidence · 2026-08 · local
- evidence/elegoo_official_product_page.md (full Refund & Warranty tables as rendered on the product page, incl. the consumables list and the CANVAS row); docs/CC2_manual_E matterhackers.com · 2026-08 · doc
- store.creality.com K2 SE page badges; forum.creality.com/t/k2se-camera/47535 (some owners got cables free, others quoted ~$30 shipping after weeks of delay; chat support project evidence · 2026-08 · local
- forum.creality.com/t/k2-se-do-not-buy-this-devil-of-a-machine-rant/50685 (opened Apr 20 2026, replies to Jul 13 2026); forum.creality.com/t/k2se-firmware-upgrade/51367 (r project evidence · 2026-08 · local
- wiki.creality.com/en/k2-flagship-series/k2-se/parts-list (all 21 rows extracted from evidence/wiki_k2se_parts-list.html); manual 6.2.2 (plate purchase link vip.creality.c project evidence · 2026-08 · local
- Discord member counts via web search of https://discord.com/servers/opencentauri-1367538416539013122 and https://discord.com/invite/elegoo-official-969282195552346202; ht discord.com · 2026-08 · doc
- Discord member counts via web search of https://discord.com/servers/opencentauri-1367538416539013122 and https://discord.com/invite/elegoo-official-969282195552346202; ht discord.com · 2026-08 · doc
- Discord member counts via web search of https://discord.com/servers/opencentauri-1367538416539013122 and https://discord.com/invite/elegoo-official-969282195552346202; ht api.github.com · 2026-08 · doc
- Discord member counts via web search of https://discord.com/servers/opencentauri-1367538416539013122 and https://discord.com/invite/elegoo-official-969282195552346202; ht api.github.com · 2026-08 · doc
- Discord member counts via web search of https://discord.com/servers/opencentauri-1367538416539013122 and https://discord.com/invite/elegoo-official-969282195552346202; ht docs.opencentauri.cc · 2026-08 · doc
- forum.creality.com threads 50685, 51367, 47535; GitHub repo search returned no K2 SE project project evidence · 2026-08 · local
- https://api.github.com/orgs/OpenCentauri/repos; https://github.com/OpenCentauri/cad; https://github.com/OpenCentauri/cad/issues/13 ("Add CC2 CAD"); https://docs.opencenta github.com · 2026-08 · doc
- https://api.github.com/orgs/OpenCentauri/repos; https://github.com/OpenCentauri/cad; https://github.com/OpenCentauri/cad/issues/13 ("Add CC2 CAD"); https://docs.opencenta docs.opencentauri.cc · 2026-08 · doc
- See N3/N5 evidence; store "Optional Accessories" (AI camera, Creality RFID filaments, SpacePi X4 Filament Dryer) project evidence · 2026-08 · local
- Earliest owner evidence Dec 27 2025 -> ~8 months of field history at 2026-08-18; no structured long-term review exists project evidence · 2026-08 · local
- Searched My Tech Fun (no K2-series video at all), All3DP (K2 SE = news piece; review is of K2 Pro), Tom's Hardware (deal post), Notebookcheck (deal post), 3DPrintBeginner project evidence · 2026-08 · local
- As V1 project evidence · 2026-08 · local
- layerdepth.com (explicitly non-hands-on; provides no Benchy time); other aggregation sites claim "<15 min (14 in their test)" with no settings, one attributing the figure project evidence · 2026-08 · local
- As V1; no owner thread addresses first-layer consistency systematically project evidence · 2026-08 · local
- all3dp.com/4/crealitys-new-k2-se-might-be-a-smarter-buy-than-the-k1c/; layerdepth.com/reviews/creality-k2-se/; evidence/creality_store_k2se_combo.html ("Customer Reviews\ project evidence · 2026-08 · local