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Bambu Lab
Bambu Lab H2S
Single-nozzle CoreXY with a 340 × 320 × 340 mm build volume, nozzle up to 350 °C and chamber heating up to 65 °C. Also offered as Laser Full Combo 10 W; it is not a dual-nozzle H2D.
Assessed from documentation Updated on October 4, 2026
Variants
How to recognize it: Check the full model name on the label or in device information. Combo denotes an AMS bundle: check installed accessories and any modifications separately.
H2S / H2S AMS Combo (senza laser)
Technical specifications
Manufacturer specifications for the listed configuration. Notes identify accessories, measurement conditions and calculated values.
Technology and structure3
| Technology | FDM |
|---|---|
| Kinematics | CoreXY |
| Build area shape | Rectangular |
Build area and volume4
| Build area X | 340 mm |
|---|---|
| Build area Y | 320 mm |
| Build area Z | 340 mm |
| Build volume | 36.992 L Calculated from nominal X × Y × Z dimensions. |
Hardware2
| Enclosed as standard | Yes |
|---|---|
| Installed toolheads / extruders | 1 |
Temperatures3
| Maximum hotend temperature | 350 °C |
|---|---|
| Chamber heating | Active |
| Maximum chamber temperature | 65 °C |
Technical sources: H2S — presentazione e configurazioni
Undocumented specifications (40)
- Shared dual-nozzle area X: Not documented
- Shared dual-nozzle area Y: Not documented
- Shared dual-nozzle area Z: Not documented
- Extruder type: Not documented
- Filament diameter: Not documented
- Standard nozzle: Not documented
- Available nozzle diameters: Not documented
- Nozzle material: Not documented
- Build plate: Not documented
- Maximum bed temperature: Not documented
- Advertised maximum print speed: Not documented
- Advertised typical print speed: Not documented
- Maximum travel speed: Not documented
- Maximum acceleration: Not documented
- Maximum volumetric flow: Not documented
- Minimum layer thickness: Not documented
- Maximum layer thickness: Not documented
- Multicolor system: Not documented
- Colors with documented configuration: Not documented
- Automatic leveling: Not documented
- Filament runout sensor: Not documented
- Power loss recovery: Not documented
- Camera: Not documented
- Air filtration: Not documented
- Control display diagonal: Not documented
- Control display: Not documented
- Connectivity: Not documented
- Listed slicers: Not documented
- Firmware: Not documented
- Internal storage: Not documented
- Manufacturer-listed materials: Not documented
- Machine width: Not documented
- Machine depth: Not documented
- Machine height: Not documented
- Net weight: Not documented
- Rated power: Not documented
- Power supply: Not documented
- Advertised noise: Not documented
- Leveling method: Not documented
- Advertised Z accuracy: Not documented
H2S Laser Full Combo 10 W
Technical specifications
Manufacturer specifications for the listed configuration. Notes identify accessories, measurement conditions and calculated values.
Technology and structure3
| Technology | FDM |
|---|---|
| Kinematics | CoreXY |
| Build area shape | Rectangular |
Build area and volume4
| Build area X | 340 mm |
|---|---|
| Build area Y | 320 mm |
| Build area Z | 340 mm |
| Build volume | 36.992 L Calculated from nominal X × Y × Z dimensions. |
Hardware2
| Enclosed as standard | Yes |
|---|---|
| Installed toolheads / extruders | 1 |
Temperatures3
| Maximum hotend temperature | 350 °C |
|---|---|
| Chamber heating | Active |
| Maximum chamber temperature | 65 °C |
Technical sources: H2S — presentazione e configurazioni
Undocumented specifications (40)
- Shared dual-nozzle area X: Not documented
- Shared dual-nozzle area Y: Not documented
- Shared dual-nozzle area Z: Not documented
- Extruder type: Not documented
- Filament diameter: Not documented
- Standard nozzle: Not documented
- Available nozzle diameters: Not documented
- Nozzle material: Not documented
- Build plate: Not documented
- Maximum bed temperature: Not documented
- Advertised maximum print speed: Not documented
- Advertised typical print speed: Not documented
- Maximum travel speed: Not documented
- Maximum acceleration: Not documented
- Maximum volumetric flow: Not documented
- Minimum layer thickness: Not documented
- Maximum layer thickness: Not documented
- Multicolor system: Not documented
- Colors with documented configuration: Not documented
- Automatic leveling: Not documented
- Filament runout sensor: Not documented
- Power loss recovery: Not documented
- Camera: Not documented
- Air filtration: Not documented
- Control display diagonal: Not documented
- Control display: Not documented
- Connectivity: Not documented
- Listed slicers: Not documented
- Firmware: Not documented
- Internal storage: Not documented
- Manufacturer-listed materials: Not documented
- Machine width: Not documented
- Machine depth: Not documented
- Machine height: Not documented
- Net weight: Not documented
- Rated power: Not documented
- Power supply: Not documented
- Advertised noise: Not documented
- Leveling method: Not documented
- Advertised Z accuracy: Not documented
No published compatibility for this printer.
Related guides
General guides help identify print defects. Follow the manual for your exact model and variant for disassembly, maintenance and calibration.
- First layer not sticking: causes and checks
How to recognise a first layer that is too high, too squished or uneven and fix it in order: plate cleaning, slicer profile, leveling, Z offset. Based on official guidance from Bambu Lab, Prusa, Creality, Elegoo and Anycubic.
- Warping: corners lifting off the bed with ABS, ASA, PETG and PLA
Why corners curl and how to reduce it: plate cleaning, drafts, enclosure, bed temperature, brim and ears, cooling and glue. Based on official guidance from Bambu Lab and Prusa and on user experience.
- Clogged nozzle and under-extrusion: find where the blockage is and fix it
How to tell a blockage in the PTFE tube, the extruder or the hotend apart, when to use the needle and cold pull, how to recognise heat creep, and when replacing the nozzle, PTFE tube or gears is actually justified.
- Wet filament: recognise it, dry it and store it
Symptoms of filament that has absorbed moisture, the most sensitive materials, how to dry following Bambu Lab and Prusa official tables without damaging spool or filament, and how to keep it dry.
- Stringing and oozing: how to get rid of filament strings and blobs
How to recognise stringing and oozing, the main causes (wet filament, temperature, retraction, travel moves, nozzle) and the checks to do in order, with official guidance from Prusa, Bambu Lab, Creality and Elegoo.
- Layer shifting: causes and checks in order
Why layers shift along X or Y and how to find the cause: obstructions, collisions with curled parts, belts, pulleys, speed, electronics cooling and motors, with official guidance from Prusa, Bambu Lab, Creality, Elegoo and Anycubic.
- Ringing and ghosting: getting rid of ripples on FDM print walls
What ringing (or ghosting) is, why it appears after corners and lettering, and how to fix it in order: printer surface, loose parts, belts, lubrication, vibration calibration (input shaping), speed and acceleration.
Dates and news
-
Bambu Lab launches the single-nozzle H2S
Bambu Lab introduced the H2S, a large-format single-nozzle printer in the H2 family. The AMS Combo and Laser Full Combo were available immediately, while the printer-only version was planned for October 2025 at US$1,249.
Sources: H2S — launch and configurations (Bambu Lab)
Official documentation
Manuals and guides published by Bambu Lab. Links go to the manufacturer’s site; we consulted them on the date shown.
- Support page
-
- Support wiki hub — English, accessed on October 5, 2026
- User manual
-
- Introduction to components (manual) — English, accessed on October 5, 2026
- Quick start guide
-
- Quick start guide (Quick Start Guide, PDF) — English, accessed on October 5, 2026
- Quick start guide (PDF, Italian) — Italian, accessed on October 5, 2026
- Maintenance
-
- Periodic maintenance and cleaning — English, accessed on October 5, 2026
- H2S, H2D, H2C — XYZ axis cleaning and lubrication — English, accessed on October 5, 2026
- Belt tensioning — English, accessed on October 5, 2026
- Cold pull and nozzle cleaning — English, accessed on October 5, 2026
- H2S, H2D — periodic maintenance — English, accessed on October 5, 2026
- Troubleshooting
-
- Clearing a clogged nozzle/hotend — English, accessed on October 5, 2026
- Cleaning a clogged extruder — English, accessed on October 5, 2026
- First layer optimization — English, accessed on October 5, 2026
- Parts replacement
-
- Hotend and silicone sock replacement — English, accessed on October 5, 2026
- XY belt replacement — English, accessed on October 5, 2026
- H2S, H2D — air filter and filter cover replacement — English, accessed on October 5, 2026
- Firmware and software
-
- Firmware release history — English, accessed on October 5, 2026
- Firmware download (including offline) — English, accessed on October 5, 2026
- Safety
-
- H2S, H2D — laser safety document — English, accessed on October 5, 2026
- Technical specifications
-
- FAQ and specifications — English, accessed on October 5, 2026
- Official guide — H2S features — Italian, accessed on October 5, 2026
Sources
- H2S — launch and configurations — Bambu Lab, accessed on October 4, 2026
- Official guide — H2S features — Bambu Lab, accessed on October 5, 2026