3D Printing Info

Printer comparison

ELEGOO Centauri 2 vs ELEGOO Neptune 3 Pro

Compare hardware, build volume, printing specifications, dated prices and sources.

ELEGOO Centauri 2 guideELEGOO Neptune 3 Pro guide

2 selected · all documented properties

Open these two in the interactive comparisonMore ELEGOO Centauri 2 comparisonsMore ELEGOO Neptune 3 Pro comparisons
ELEGOO Centauri 2 vs ELEGOO Neptune 3 Pro — documented properties and sources
PropertyELEGOO Centauri 2COREXYELEGOO Neptune 3 ProBEDSLINGER
Identity
BrandELEGOOELEGOO
ClassCOREXYBEDSLINGER
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)ELEGOO Centauri 2 (page title "Elegoo Centauri 2 | High-Speed CoreXY 3D Printer")[1]ELEGOO Neptune 3 Pro[2]
Release date (announcement and actual shipping)Listed on the ELEGOO US store from 24 June 2026 (Shopify publish date)[3]Listed on the ELEGOO US store from 11 November 2022 (Shopify publish date)[4]
Street price (USD; dated snapshot per entry)$279.00 on us.elegoo.com, Aug 2026, against a compare-at price of $299.00[3]$259.99 on us.elegoo.com, Aug 2026, with the compare-at price also $259.99 - notably more than the newer and far faster Neptune 4 at $219[4][5]
Variants & sibling models — and how to tell them apart (spec-contamination risk)Sold both bare and as a Centauri 2 Combo. The Combo is the one with multicolour: 4-colour CANVAS printing, RFID filament detection, auto refill and auto tangle detection are all listed Yes for the Combo and dash for the bare machine, and the Combo body measures 500 x 480 x 586 mm and 15.5 kg against 398 x 404 x 490 mm and 13.7 kg. Camera, LED lighting, air filter and the smart exhaust grille are optional expansions on both. Distinct from the Centauri Carbon line, which is enclosed and takes carbon-fibre filament[1][6]The last Neptune 3 still listed; the 3 Plus and 3 Max are gone from the store's Neptune section. Do not read Neptune 4 figures onto it: the 3 Pro runs Marlin, not Klipper, tops out at 180 mm/s rather than 500, uses a 36-point mesh rather than 121-point, and its nozzle stops at 260 C rather than 300 C. Its machine size, 475 x 445 x 515 mm, is identical to the Neptune 4's, so body dimensions will not tell them apart[2][7][8]
Market position: superseded? successor announced?Not documentedSuperseded by the Neptune 4 series and, in ELEGOO's current marketing, by the Centauri line[8]
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usable256 x 256 x 256 mm; printing platform 260 x 260 mm[1]225 x 225 x 280 mm; printing platform 235 x 235 mm[2]
Machine footprint (mm) & clearance needed (cable/spool overhang)398 x 404 x 490 mm for the bare Centauri 2 (the Combo is 500 x 480 x 586 mm)[1]475 x 445 x 515 mm - the same body as the Neptune 4. ELEGOO's maximum size for machine activity is 475 x 580 x 725 mm[2][7]
Net weight (kg)13.7 kg net, 17.5 kg gross (bare machine; the Combo is 15.5 kg net, 19 kg gross)[1]8.1 kg net, 10.15 kg gross[2]
Frame construction & materialRigid aluminium frame[1]CNC-machined aluminium extrusion frame (Neptune family)[7]
Enclosure: open / enclosed; panel material; door/lidNot documentedOpen frame, no enclosure[2]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)CoreXY with dual 4260 stepper motors driving X and Y independently[1]Cartesian i3 bed-slinger[2]
Z-axis: leadscrew count & type, sync mechanism, anti-backlashThree lead screws with three linear guide rods[1]Two lead screws[2]
Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?)"Silent Drive (All Axes)"; no driver part number published[1]"Silent Drive (All Axes)"; no driver part number published[2]
Speed & Acceleration
Max print speed (claimed, mm/s)500 mm/s or less, with 250 mm/s given as the recommended speed[1]30-180 mm/s, with 60 mm/s given by ELEGOO as the recommended speed - a pre-Klipper machine, and the slowest in this file apart from the OrangeStorm Giga[2]
Recommended/typical print speed250 mm/s recommended printing speed (manufacturer figure)[1]60 mm/s recommended printing speed (manufacturer figure)[2]
Max acceleration (claimed, mm/s²)20000 mm/s2 maximum acceleration; default acceleration 10000 mm/s2[1]Not documented
Extruder
Type (direct drive / bowden) & design nameDual-gear direct extruder with one fan[1]Dual-gear direct extruder with 2 fans[2]
Hotend & Nozzle
Hotend design (proprietary/standard; quick-swap mechanism?)Brass-hardened steel nozzle, 0.4 mm, titanium-alloy heat break[1]Brass nozzle, 0.4 mm, titanium-alloy heat break[2]
Max nozzle temp claimed AND firmware max temp limit (both values)350 C claimed max nozzle temperature - higher than the enclosed Centauri Carbon's 320 C, even though ELEGOO lists ABS, ASA, PET, PETG-CF, PA and PC as not recommended on this machine[1][6]260 C claimed max nozzle temperature - 40 C below the Neptune 4 series[2][7]
Heated Bed & Surface
Max bed temp claimed AND firmware limit110 C max heated bed temperature at 25 C ambient[1]100 C max heated bed temperature at 25 C ambient[2]
Bed surface (material, texture, coating), single/double-sidedDual-sided spring steel sheet, textured PEI plus a PLA-specific surface[1]PEI spring steel sheet[2]
Leveling & Z-Offset
Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe)121-point auto-levelling plus partial bed levelling, with full-auto calibration[1]36-point auto-levelling (the Neptune 4 family moved to 121 points)[2][9]
Filament Handling & Detection
Filament runout sensor (type, location)Filament run-out sensor, clog detection, auto filament unloading, fan self-check, part-cooling-fan drop detection and power-loss recovery[1]Filament run-out sensor and power-loss recovery[2]
Electronics & Power
Mainboard model & MCU (exact chip markings if teardowns exist)"Powerful Self-Developed Motherboard" is all ELEGOO publishes[1]Not documented
Total rated power draw1100 W at 220 V, 350 W at 110 V rated; 24 V output; 100-240 VAC input[1]300 W rated power, 24 V output[2]
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)ELEGOO OS; ElegooSlicer recommended, Orca and Cura supported[1]Marlin - ELEGOO names the system "Marlin" for the Neptune 3 Pro, against "Klipper" for the whole Neptune 4 family[2][9]
Connectivity, UI & Camera
Display: size, type, touch?5-inch colour capacitive touch screen - larger than the 4.3-inch panel on the Centauri Carbon[1][6]4.3-inch colour capacitive touch screen[2]
On-device UI capabilities (model preview, per-object controls, etc.)Colour touch UI; input formats STL, OBJ, 3MF and STEP[1]Colour capacitive touch UI; ElegooSlicer recommended, Orca and Cura supported[2]
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveUSB and Wi-Fi[1]TF (microSD) card and USB cable only - no LAN and no Wi-Fi[2]
Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps)No camera as standard - listed as an optional expansion, as are LED lighting and the air filter[1]Not documented
Materials Support
Officially supported filament listIdeal: PLA, PETG, PLA-CF, TPU. Explicitly not recommended: ABS/ABS-CF, ASA/ASA-CF, PET/PET-CF, PETG-CF, PA/PA-CF, PC[1]PLA, TPU, PETG, ABS, ASA - no Nylon, unlike the Neptune 4 family[2][7]
Noise & Power Consumption
Noise: claimed dB and independently measured dB (distance/method)Not documentedOperating sound published as 48 dB or less - a manufacturer figure with no distance or method stated[2]
Reliability, Support & Ecosystem
Warranty length & support reputation (evidence, not vibes)12 months on brand-new machines and parts, but ELEGOO's own table excludes a long list of parts from that: PEI plate / build plate / nozzle kit / PTFE tube / heater / thermistor / hot end / packaging / manual / tools carry no warranty at all, and the extruder, extruder kit and printhead kit get 6 months. Certified pre-owned machines carry no warranty[10]12 months on brand-new machines and parts, but ELEGOO's own table excludes a long list of parts from that: PEI plate / build plate / nozzle kit / PTFE tube / heater / thermistor / hot end / packaging / manual / tools carry no warranty at all, and the extruder, extruder kit and printhead kit get 6 months. Certified pre-owned machines carry no warranty[10]

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

  1. ELEGOO Centauri 2 product page (Centauri 2 Combo vs Centauri 2 side-by-side specification table) us.elegoo.com · 2026-08 · vendor
  2. ELEGOO compare-products page, which embeds the full per-model specification JSON for every Neptune, Centauri and OrangeStorm machine us.elegoo.com · 2026-08 · vendor
  3. ELEGOO Centauri 2 Shopify product JSON (price and store publish date) us.elegoo.com · 2026-08 · vendor
  4. ELEGOO Neptune 3 Pro Shopify product JSON (price and store publish date) us.elegoo.com · 2026-08 · vendor
  5. ELEGOO Neptune 4 Shopify product JSON (variant prices and store publish date) us.elegoo.com · 2026-08 · vendor
  6. ELEGOO Centauri Carbon product page (full specification table) us.elegoo.com · 2026-08 · vendor
  7. ELEGOO Neptune 4 product page (Specification table) us.elegoo.com · 2026-08 · vendor
  8. ELEGOO US store 3D printers collection (current line-up, Aug 2026) us.elegoo.com · 2026-08 · vendor
  9. ELEGOO Neptune 4 Plus product page (full specification table) us.elegoo.com · 2026-08 · vendor
  10. ELEGOO Refund & Warranty policy (warranty period table) us.elegoo.com · 2026-08 · vendor