3D Printing Info

Printer comparison

Anycubic Kobra S1 Max vs QIDI Max4

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

2 selected · all documented properties

Anycubic Kobra S1 Max vs QIDI Max4 — documented properties and sources
PropertyAnycubic Kobra S1 MaxCOREXYQIDI Max4COREXY
Identity
BrandAnycubicQIDI
ClassCOREXYCOREXY
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)Anycubic Kobra S1 Max[1]QIDI Max4, sold as "Max4 High-Temp 3D Printer"[2][3]
Release date (announcement and actual shipping)Listed on the Anycubic store from 16 January 2026 (Shopify publish date)[4]Not published on QIDI's product page; the machine is listed as the current replacement for the discontinued X-Max 3 (checked Aug 2026)[2][5]
Street price (USD; dated snapshot per entry)$699.00 with a US plug on store.anycubic.com, Aug 2026, against a compare-at price of $899.00 ($804.00 for the EU plug variant)[4]$1,099.00 standard on us.qidi3d.com against a $1,149.00 compare-at price, checked Aug 2026. Variants: Polar Cooler bundle $1,249.00 (was $1,348.00), Max4 Combo $1,249.00 (was $1,299.00), Combo + Polar Cooler $1,399.00[2]
Variants & sibling models — and how to tell them apart (spec-contamination risk)The large enclosed Anycubic. Against the Kobra S1: 350 mm cube against 250 (Anycubic claims 174% more volume), 350 C hardened-steel nozzle against 320 C, 65 C active chamber heating that the S1 lacks entirely, a titanium-alloy throat tube and hardened-steel extruder gears, an activated carbon filter, 720p camera against 480p, and 25.7 kg against 9.37 kg. Its engineering-filament list is correspondingly longer[1][6]Four variants at the US store: Standard, Polar Cooler bundle, Combo (adds QIDI Box), Combo + Polar Cooler. Direct replacement for the X-Max 3, which it differs from on every headline figure: 390x390x340 vs 325x325x315, 800 vs 600 mm/s, 370 vs 350 °C. Do not carry X-Max 3 specs across[2][5]
Market position: superseded? successor announced?Not documentedCurrent large-format flagship as of Aug 2026; QIDI's X-Max 3 page directs buyers here[2][5]
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usable350 x 350 x 350 mm[1]390 x 390 x 340 mm advertised[2][3]
Machine footprint (mm) & clearance needed (cable/spool overhang)502.7 x 483 x 584 mm[1]558 x 578 x 612 mm[3]
Net weight (kg)25.7 kg net, 31 kg packaged[1]46.5 kg net[3]
Frame construction & materialNot documentedEnclosed CoreXY chassis; QIDI does not publish a frame-material breakdown[2]
Enclosure: open / enclosed; panel material; door/lidFully enclosed CoreXY with 65 C active chamber heating, dual external-circulation cooling fans and an activated carbon filter, plus a temperature and moisture display[1]Fully enclosed with a 3-in-1 air filter (G3 pre-filter + H12 HEPA + coconut-shell activated carbon)[3]
Passive chamber temperature reached (if enclosed; measured values preferred)65 C active chamber heating (manufacturer figure, actively heated rather than passive)[1]65 °C, independent active chamber heating (manufacturer claim), with a 4-pin PWM chamber fan with RPM feedback[3]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)CoreXY (stated outright in Anycubic's specification table)[1]CoreXY[3]
Z-axis: leadscrew count & type, sync mechanism, anti-backlashNot documented2 mm lead Z screw with an anti-backlash nut[2]
Stepper motors (frame size, step angle, brand if known)Not documentedFOC closed-loop stepper motors[3]
Speed & Acceleration
Max print speed (claimed, mm/s)600 mm/s maximum print speed (manufacturer claim), 300 mm/s recommended[1]800 mm/s (manufacturer claim, maximum)[3]
Recommended/typical print speed300 mm/s recommended print speed (manufacturer figure)[1]Not documented
Max acceleration (claimed, mm/s²)20000 mm/s2 maximum acceleration, 10000 mm/s2 recommended[1]30,000 mm/s2 (manufacturer claim, maximum)[3]
Max volumetric flow claimed (mm³/s)Not documented40 mm3/s rated flow (manufacturer claim)[3]
Vibration Compensation / Input Shaping
Input shaping supported? Implementation (Klipper IS / Marlin ZV / proprietary)Not documentedInput shaper listed as a feature[3]
Extruder
Type (direct drive / bowden) & design nameDirect drive ("short distance extrusion") with hardened-steel extruder gears, which Anycubic rates at six times the life of brass on carbon-fibre filament[1]Direct drive, dual hardened-steel gears, 8.9:1 reduction[3]
Gear ratio & drive gear materialNot documented8.9:1; drive gears hardened steel[3]
Hotend & Nozzle
Hotend design (proprietary/standard; quick-swap mechanism?)Quick-release hotend with a titanium-alloy throat tube; 0.4 mm and 0.6 mm nozzles supplied, 0.25 and 0.8 mm optional; hardened steel[1]Multi-metal hotend with a ceramic heater and a 0.4 mm bimetal nozzle; ceramic throat[3]
Max nozzle temp claimed AND firmware max temp limit (both values)350 C maximum nozzle temperature[1]<=370 °C claimed[2][3]
Heated Bed & Surface
Max bed temp claimed AND firmware limit120 C maximum hotbed temperature on a PEI spring steel build plate[1]<=120 °C claimed on a 390 x 390 mm bed QIDI markets as ultra-uniform (no thermal imaging published)[2][3]
Bed surface (material, texture, coating), single/double-sidedNot documentedAluminium plate with silicone heater; double-sided magnetic PEI build plate[3]
Leveling & Z-Offset
Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe)LeviQ 3.0 auto-levelling[1]Automatic levelling; probe technology not named by QIDI[3]
Filament Handling & Detection
Filament runout sensor (type, location)Filament detection with auto resume, entanglement detection and power-loss resume[1]Filament run-out sensor and filament tangle detection (tangle mechanism not described), plus a filament cutter[3]
Multi-material/multi-color capability or official upgrade pathUp to 16-colour printing with ACE 2 Pro units, sold separately[1]QIDI Box multi-colour unit supported; sold bundled as the Max4 Combo[2][3]
Cooling & Air Handling
Part-cooling fan(s): count, size, ducting designNot documentedToolhead, model and auxiliary fans are all 4-pin PWM with RPM feedback; mainboard and chamber fans are closed-loop, chamber fan high-power turbo[3]
Chamber/exhaust fan & filtration (activated carbon / HEPA)Activated carbon filter for odour removal; dual external-circulation cooling fans[1]3-in-1 filtration: G3 pre-filter, H12 HEPA, coconut-shell activated carbon[3]
Electronics & Power
Input voltage (110/220 V, switch or auto)Not documented110 V / 220-240 V AC, 50/60 Hz[3]
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Kobra OS with pressure advance and flow calibration supported[1]Not stated on the product page; QIDI Studio, PrusaSlicer and Orca are the supported slicers[3]
Connectivity, UI & Camera
Display: size, type, touch?4.3-inch capacitive touchscreen[1]5-inch touchscreen, 480 x 800[3]
On-device UI capabilities (model preview, per-object controls, etc.)Touchscreen plus slicing software, Anycubic app and U-disk; AI spaghetti detection using an in-house algorithm and the 720p camera[1]Not documented
WiFi (band/standard), Ethernet, USB ports, SD/flash-drivePrinter UI, slicing software, Anycubic app and U-disk[1]Wi-Fi, LAN, USB[3]
Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps)Standard HD camera, 720p, used for real-time AI anomaly detection[1]AI camera with print-failure detection[2][3]
Calibration Routines & QoL
Assembly level & time from unbox to first printShips 95% pre-assembled; Anycubic claims unbox to print in 10 minutes[1]Not documented
Power-Loss & Interruption Recovery
Power-loss recovery: mechanism (how is state saved? capacitor / eeprom / file on shutdown?)Not documentedPower-loss recovery listed; mechanism not published[3]
Materials Support
Officially supported filament listConsumer grades: PLA, PETG, TPU (95A), TPU for ACE, PET, PLA-CF, PETG-CF, PVA. Engineering grades: ABS, ASA, PC, PA, PA6-CF, PC-CF/GF, PET-CF[1]PLA, ABS, ASA, PETG, TPU, PA, PC, and glass- and carbon-fibre-filled polymers[3]
Noise & Power Consumption
Noise: claimed dB and independently measured dB (distance/method)48 dB or less in standard mode, as low as 45 dB in quiet mode - manufacturer figures with no distance or method stated[1]Not documented
Reliability, Support & Ecosystem
Warranty length & support reputation (evidence, not vibes)One year on the complete machine (excluding gifted and second-hand machines), with component warranty periods that vary by part; the period starts on the delivery date and is suspended while a replacement is in transit. Anycubic states it will follow longer local statutory periods where they apply[7]1-year coverage, lifetime tech guidance, 14-day no-reason return[2]

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. Anycubic Kobra S1 Max product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  2. QIDI Max4 product page (US store) us.qidi3d.com · 2026-08 · vendor
  3. QIDI Tech Max4 technical data table 3djake.com · 2026-08 · vendor
  4. Anycubic Kobra S1 Max Shopify product JSON (variant prices and store publish date) store.anycubic.com · 2026-08 · vendor
  5. QIDI X-Max 3 product page (US store) us.qidi3d.com · 2026-08 · vendor
  6. Anycubic Kobra S1 product page (Specifications table) store.anycubic.com · 2026-08 · vendor
  7. Anycubic refund and warranty policy store.anycubic.com · 2026-08 · vendor