3D Printing Info

Printer comparison

Bambu Lab H2D vs QIDI Max4

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

2 selected · all documented properties

Bambu Lab H2D vs QIDI Max4 — documented properties and sources
PropertyBambu Lab H2DCOREXYQIDI Max4COREXY
Identity
BrandBambu LabQIDI
ClassCOREXYCOREXY
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)Bambu Lab H2D[1]QIDI Max4, sold as "Max4 High-Temp 3D Printer"[2][3]
Release date (announcement and actual shipping)Not documentedNot published on QIDI's product page; the machine is listed as the current replacement for the discontinued X-Max 3 (checked Aug 2026)[2][4]
Street price (USD; dated snapshot per entry)From $1,549.00 on the Bambu Lab US store, Aug 2026, against a stated typical price of $1,749.00; the product page shows $1,749.00 (typical $1,999.00) with a combo variant selected[5][6]$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)Six SKUs on one product page including H2D, H2D AMS Combo and H2D Laser Full Combo. The Laser Edition adds laser safety windows and the air-assist pump; a plain H2D can be upgraded with a Laser Upgrade Kit. The BirdsEye camera is only fitted on the Laser Edition. Siblings in the same family are the H2S (single nozzle, 340x320x340 mm, 30 kg) and H2C (dual nozzle, 305x320x325 mm single-nozzle volume, 32.5 kg, four cameras as standard) - all three share the 492x514x626 mm body, so body dimensions alone will not tell them apart[1][7][8]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][4]
Market position: superseded? successor announced?Current model; the H2C sits above it in the same body at $2,199 and the H2S below it at $1,199[5]Current large-format flagship as of Aug 2026; QIDI's X-Max 3 page directs buyers here[2][4]
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usableSingle-nozzle printing 325 x 320 x 325 mm; dual-nozzle printing 300 x 320 x 320 mm; total volume across the two nozzles 350 x 320 x 320 mm. The sortable figure is the single-nozzle volume[1]390 x 390 x 340 mm advertised[2][3]
Machine footprint (mm) & clearance needed (cable/spool overhang)492 x 514 x 626 mm[1]558 x 578 x 612 mm[3]
Net weight (kg)31 kg net[1]46.5 kg net[3]
Frame construction & materialAluminium, steel, plastic and glass chassis and shell[1]Enclosed CoreXY chassis; QIDI does not publish a frame-material breakdown[2]
Enclosure: open / enclosed; panel material; door/lidFully enclosed with a door sensor; active chamber heating to 65 C, chamber exhaust and heat-circulation fans, and a G3 + H12 HEPA + granulated coconut-shell carbon filter stack[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)Active chamber heating, maximum 65 C (manufacturer figure)[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 - not named in the spec sheet; Bambu groups the H2 series with its enclosed CoreXY machines at 20000 mm/s2[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)1000 mm/s max toolhead speed (manufacturer claim); no independent measurement found[1]800 mm/s (manufacturer claim, maximum)[3]
Max acceleration (claimed, mm/s²)20000 mm/s2 max toolhead acceleration (manufacturer claim)[1]30,000 mm/s2 (manufacturer claim, maximum)[3]
Max volumetric flow claimed (mm³/s)40 mm3/s with the standard-flow hotend, 65 mm3/s with the optional high-flow hotend; both measured by Bambu on a 250 mm round single-wall model in Bambu ABS at 280 C[1]40 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 nameDual direct-drive extruders with hardened-steel gears, driven by Bambu high-precision permanent-magnet synchronous motors[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?)All-metal hotend with hardened-steel nozzle, 0.4 mm included, 0.2/0.4/0.6/0.8 mm supported; an optional high-flow hotend is offered[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 claimed max nozzle temperature[1]<=370 °C claimed[2][3]
Heated Bed & Surface
Max bed temp claimed AND firmware limit120 C max heatbed temperature[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-sidedTextured PEI plate and Smooth PEI plate supported[1]Aluminium 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)Not documentedAutomatic levelling; probe technology not named by QIDI[3]
Filament Handling & Detection
Filament runout sensor (type, location)Yes - run-out sensor, tangle sensor and door sensor; odometry with AMS[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 pathNot documentedQIDI Box multi-colour unit supported; sold bundled as the Max4 Combo[2][3]
Cooling & Air Handling
Part-cooling fan(s): count, size, ducting designPart-cooling fan, auxiliary part-cooling fan, chamber heat-circulation fan, hotend cooling fan, main control board fan and chamber exhaust fan, all closed-loop controlled[1]Toolhead, 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)Not documented3-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]
Total rated power draw100-120 VAC / 200-240 VAC 50/60 Hz; 2200 W at 220 V, 1320 W at 110 V. The US store page states the H2D it sells is the 100-120 V version[1]Not documented
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Closed-source proprietary firmware - not a Klipper or Marlin derivative, and no printer-firmware source is published. The bambulab GitHub organisation carries 11 repositories (Bambu Studio, wxWidgets/boost/ffmpeg forks, the wiki); none is printer firmware. Updates are delivered over the air via Bambu Studio / Bambu Handy[9]Not stated on the product page; QIDI Studio, PrusaSlicer and Orca are the supported slicers[3]
Connectivity, UI & Camera
Display: size, type, touch?5-inch 720x1280 touchscreen[1]5-inch touchscreen, 480 x 800[3]
On-device UI capabilities (model preview, per-object controls, etc.)Touchscreen plus Bambu Studio, Bambu Suite and Bambu Handy[1]Not documented
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveDual-band Wi-Fi (802.11 a/b/g/n, 2.4 and 5 GHz), built-in 8 GB eMMC and a USB port[1]Wi-Fi, LAN, USB[3]
Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps)Four cameras listed: live view 1920x1080, nozzle camera 1920x1080, toolhead camera 1920x1080, and a 3264x2448 BirdsEye camera fitted only on the Laser Edition[1]AI camera with print-failure detection[2][3]
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 listPLA, PETG, TPU, PVA, BVOH, ABS, ASA, PC, PA, PET, plus carbon/glass-fibre reinforced PLA, PETG, PA, PET, PC, ABS, ASA, PPA-CF/GF, PPS and PPS-CF/GF[1]PLA, ABS, ASA, PETG, TPU, PA, PC, and glass- and carbon-fibre-filled polymers[3]
Reliability, Support & Ecosystem
Warranty length & support reputation (evidence, not vibes)2-year limited warranty for consumers in the US, Canada, the EU, Switzerland, Norway and Iceland; 1 year in the rest of the world. Bambu Lab's own policy records the US/Canada term as a 2026 extension from one year to two[10]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. Bambu Lab H2D - Technical Specifications bambulab.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. QIDI X-Max 3 product page (US store) us.qidi3d.com · 2026-08 · vendor
  5. Bambu Lab US Store - 3D Printers collection listing (base prices, Aug 2026) us.store.bambulab.com · 2026-08 · vendor
  6. Bambu Lab H2D store page us.store.bambulab.com · 2026-08 · vendor
  7. Bambu Lab H2S & H2S Laser Edition Spec Sheet (PDF) store.bblcdn.com · 2026-08 · doc
  8. Bambu Lab H2C Spec Sheet (PDF) store.bblcdn.com · 2026-08 · doc
  9. GitHub - bambulab organisation repository list (11 repos, checked Aug 2026) github.com · 2026-08 · doc
  10. Bambu Lab Warranty Policy bambulab.com · 2026-08 · vendor