Build volume
340 x 320 x 340 mm (manufacturer figure)
Advertised dimensions; check usable space and variants.
Sources & dates
- Bambu Lab H2S & H2S Laser Edition Spec Sheet (PDF) · 2026-08 · doc
Single-nozzle member of the H2 family: 340x320x340 mm, 350 C hot end, 120 C bed and a 65 C heated chamber in the same body as the H2D.

340 x 320 x 340 mm (manufacturer figure)
Advertised dimensions; check usable space and variants.
350 C claimed max nozzle temperature
Published limits; hardware and firmware limits may differ.
From $1,199.00 on the Bambu Lab US store, Aug 2026, against a stated typical price of $1,249.00
Dated listing, not a live offer. Read the configuration and region.
Understand the hardware, explore compatible changes and find a diagnostic starting point when something goes wrong. Expand the specification sections for every recorded value, condition and original reference.
Dimensions, construction and the hardware that moves the print.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Manufacturer & exact marketed model name (verify the exact product identity first) | Bambu Lab H2S; spec sheet header "H2S & H2S Laser Edition Spec Sheet" | 1 source
|
| Street price (USD; dated snapshot per entry) | From $1,199.00 on the Bambu Lab US store, Aug 2026, against a stated typical price of $1,249.00 | 1 source
|
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Single-nozzle machine sharing the H2 body. H2S and H2S Laser Edition are covered by one spec sheet: the Laser Edition adds laser safety windows, the air-assist pump and the 3264x2448 BirdsEye camera, and a plain H2S can be upgraded with a Laser Upgrade Kit. Against the dual-nozzle H2D in the same 492x514x626 mm shell: 30 kg vs 31 kg, 340x320x340 mm single-nozzle volume vs 325x320x325 mm | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Build volume X×Y×Z (mm) — advertised vs actually usable | 340 x 320 x 340 mm (manufacturer figure) | 1 source
|
| Machine footprint (mm) & clearance needed (cable/spool overhang) | 492 x 514 x 626 mm - the same body as the H2D and H2C | 1 source
|
| Net weight (kg) | 30 kg net | 1 source
|
| Frame construction & material | Aluminium and steel chassis and shell | 1 source
|
| Enclosure: open / enclosed; panel material; door/lid | Fully enclosed with a door sensor; active chamber heating to 65 C, chamber exhaust and heat-circulation fans, G3 + H12 + coconut-shell carbon filtration | 1 source
|
| Passive chamber temperature reached (if enclosed; measured values preferred) | Active chamber heating, maximum 65 C (manufacturer figure) | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY - not named in the spec sheet; grouped by Bambu with the H2 enclosed CoreXY machines at 20000 mm/s2 | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Max print speed (claimed, mm/s) | 1000 mm/s max toolhead speed (manufacturer claim); no independent measurement found | 1 source
|
| Max acceleration (claimed, mm/s²) | 20000 mm/s2 max toolhead acceleration (manufacturer claim) | 1 source
|
| Max volumetric flow claimed (mm³/s) | 40 mm3/s standard-flow hotend, 65 mm3/s optional high-flow hotend; Bambu's test is a 250 mm round single-wall model in Bambu ABS at 280 C | 1 source
|
Extrusion, heating, leveling and material handling.
The H2S guide separates the hotend from the extruder as potential blockage locations. Its removal sequence matters: the filament sensor must be removed before opening the extruder cover to avoid pulling its wiring.
Applies to: H2S only; match the installed toolhead and hotend. This documented diagnostic route does not establish failure frequency.
Bambu documents a substantial Vortek conversion involving the toolhead/X-axis assembly, heatbed, AP board and hotend rack. It requires the model’s complete compatibility pack and device registration; this is a hardware rebuild rather than a firmware-only unlock.
Applies to: H2S compatibility pack only. H2S firmware must be 01.02.00.00 or later before conversion.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Type (direct drive / bowden) & design name | Direct drive with hardened-steel gears and a Bambu high-precision permanent-magnet synchronous extruder motor; built-in filament cutter | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Hotend design (proprietary/standard; quick-swap mechanism?) | All-metal hotend, hardened-steel nozzle, 0.4 mm included, 0.2/0.4/0.6/0.8 mm supported; optional high-flow hotend | 1 source
|
| Max nozzle temp claimed AND firmware max temp limit (both values) | 350 C claimed max nozzle temperature | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Max bed temp claimed AND firmware limit | 120 C max heatbed temperature | 1 source
|
| Bed surface (material, texture, coating), single/double-sided | Textured PEI plate and Smooth PEI plate supported | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Filament runout sensor (type, location) | Yes - run-out sensor, tangle sensor and door sensor; odometry with AMS | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Part-cooling fan(s): count, size, ducting design | Part-cooling fan, hotend cooling fan, main control board fan, chamber exhaust fan, chamber heat-circulation fan and auxiliary part-cooling fan, all closed-loop controlled | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Officially supported filament list | PLA, PETG, TPU, PVA, BVOH, ABS, ASA, PC, PA, PET, PPS, plus carbon/glass-fibre reinforced PLA, PETG, PA, PET, PC, ABS, ASA, PPA and PPS | 1 source
|
Firmware, controls, connections and calibration.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Total rated power draw | 100-120 VAC / 200-240 VAC 50/60 Hz; 2050 W at 220 V, 1170 W at 110 V | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| 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 | 1 source |
Owners have reported nozzle-clumping alerts on prints without an obvious clump. Check the nozzle and print first, record the exact firmware and retain logs for support. The report is evidence of an observed symptom, not proof that every alert is false or that a current release still has the issue.
Applies to: H2S owner comments in the linked issue. Firmware versions differ between reports; no universal fix is established here.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Display: size, type, touch? | 5-inch 720x1280 touchscreen | 1 source
|
| On-device UI capabilities (model preview, per-object controls, etc.) | Touchscreen plus mobile app and PC app | 1 source
|
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Built-in 8 GB eMMC and a USB port; touchscreen, app and PC control interfaces | 1 source
|
| Camera: built-in / optional? Resolution & framerate (verify — marketing often omits real fps) | Live-view camera 1920x1080 and toolhead camera 1600x1200; the 3264x2448 BirdsEye camera is fitted only on the Laser Edition | 1 source
|
Published safeguards, support terms and independent evidence.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| 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 | 1 source
|
This guide presents the catalog’s sourced record for this exact model. Source dates belong to each reference; a page update does not mean every specification has been rechecked.
Prices are dated listing snapshots, with configuration, regional and sale conditions. They are not current offers. Unknown values remain unfilled.
Firmware, variants and available accessories can change. Read the original reference before making a purchase or planning a process.
Firmware, modifications and troubleshooting links are checked against the model and stated hardware or firmware revision. A creator’s compatibility claim is not a fit test by this site. Official troubleshooting describes a diagnostic route; individual reports do not establish a failure rate.
This review did not verify firmware customization or update guidance, printable modifications for this exact model. That is a research gap, not a claim that none exist.