Bambu Lab H2S Large Format 3D Printer 340x320x340mm³
The Bambu Lab H2S is the Base large-format CoreXY 3D printer engineered for fast, reliable prototyping and small-batch production. It expands the H2 family build area to 340mm x 320mm x 340mm while keeping the same tuned high-speed motion, enclosed heated chamber, and advanced sensor suite found in Bambu’s H2 platform. The H2S Base delivers consistent dimensional accuracy across larger parts, simplified maintenance with a single-nozzle configuration, and the option to upgrade later with the AMS multi-filament system or other official accessories to add multi-material and expanded workflows.
Features
- Large 340mm x 320mm x 340mm build volume for single-part prints and batch production.
- High-speed CoreXY motion system for rapid, precise deposition.
- Enclosed heated chamber for improved interlayer adhesion and reliable printing of engineering materials.
- Single-nozzle, second-generation extrusion optimized for robust extrusion and low maintenance.
- AMS upgradeable — supports future addition of the Bambu AMS for multi-filament capability.
- Comprehensive sensor suite (filament, door, thermal and safety sensors) for fault prevention and unattended printing.
- Onboard monitoring and connectivity for remote job control and print observation.
- Designed for workshop, R&D, and small production environments where reliability and throughput matter.
Specifications
Printing Technology
Fused Deposition Modeling
Body
| Build Volume (W*D*H) | 340*320*340 mm³ |
| Chassis | Aluminum, Steel, Plastic and Glass |
| Laser Safety Windows | Equipped on Laser Edition, normal H2S can upgrade through Laser Upgrade Kit |
| Air Assist Pump | Equipped on Laser Edition, normal H2S can upgrade through Laser Upgrade Kit |
Physical Dimensions
| Physical Dimensions | 492*514*626 mm³ |
| Net Weight | H2S: 30 kg |
Toolhead
| Hotend | All Metal |
| Extruder Gear | Hardened Steel |
| Nozzle | Hardened Steel |
| Max Nozzle Temperature | 350 ℃ |
| Included Nozzle Diameter | 0.4 mm |
| Supported Nozzle Diameter | 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm |
| Filament Cutter | Built-in |
| Filament Diameter | 1.75 mm |
| Extruder Motor | Bambu Lab High-precision Permanent Magnet Synchronous Motor |
Heatbed
| Supported Build Plate Type | Textured PEI plate, Smooth PEI Plate |
| Max Heatbed Temperature | 120 ℃ |
Speed
| Max Speed of Toolhead | 1000 mm/s |
| Max Acceleration of Toolhead | 20,000 mm/s² |
| Max Flow for Hotend (Standard Flow Hotend) | 40 mm³/s* |
| Max Flow for Hotend (Optional High Flow Hotend) | 65 mm³/s* |
*Test parameters: 250 mm round model with a single outer wall; Bambu Lab ABS; 280 ℃ printing temperature
Chamber Temperature Control
| Active Chamber Heating | Supported |
| Max Temperature | 65 ℃ |
Air Purification
| Pre-filter Grade | G3 |
| HEPA Filter Grade | H12 |
| Activated Carbon Filter Type | Granulated Coconut Shell |
| VOC Filtration | Superior |
| Particulate Matter Filtration | Supported |
Cooling
| Part Cooling Fan | Closed Loop Control |
| Cooling Fan for Hotend | Closed Loop Control |
| Main Control Board Fan | Closed Loop Control |
| Chamber Exhaust Fan | Closed Loop Control |
| Chamber Heat Circulation Fan | Closed Loop Control |
| Auxiliary Part Cooling Fan | Closed Loop Control |
Filament Supported
| PLA, PETG, TPU, PVA, BVOH, ABS, ASA, PC, PA, PET, PPS; Carbon/Glass Fiber Reinforced PLA, PETG, PA, PET, PC, ABS, ASA, PPA, PPS |
Sensor
| Live View Camera | Built-in; 1920*1080 |
| Toolhead Camera | Built-in; 1600*1200 |
| Door Sensor | Supported |
| Filament Run Out Sensor | Supported |
| Filament Tangle Sensor | Supported |
| Filament Odometry | Supported with AMS |
| Power Loss Recovery | Supported |
Electrical Requirements
| Voltage | 100–120 VAC / 200–240 VAC, 50/60 Hz |
| Max Power¹ | 2050 W@220 V / 1170 W@110 V |
Working Temperature
10 ℃-30 ℃
Electronics
| Touchscreen | 5-inch 720*1280 Touchscreen |
| Storage | Built-in 8 GB EMMC and USB Port |
| Control Interface | Touchscreen, mobile App, PC App |
| Neural Processing Unit | 2 TOPS |
Software
| Slicer | Bambu Studio Supports third-party slicers which export standard G-code, such as Super Slicer, PrusaSlicer and Cura, but certain advanced features may not be supported. |
| Supported Operating System | MacOS, Windows, Linux |
Wi-Fi
| Operating Frequency | 2412-2472 MHz (CE/FCC), 2400-2483.5 MHz (SRRC) 5150-5850 MHz |
| Wi-Fi Transmitter Power (EIRP) | 2.4 GHz: <23 dBm (FCC); <20 dBm (CE/SRRC/MIC) 5 GHz Band1/2: <23 dBm (FCC/CE/SRRC/MIC) 5 GHz Band3: <30 dBm (CE); <24 dBm (FCC) 5 GHz Band4: <23 dBm (FCC/SRRC); <14 dBm (CE) |
| Wi-Fi Protocol | IEEE 802.11 a/b/g/n |
10W Laser Module
| Laser Type | Semiconductor Laser |
| Laser Wavelength | Engraving Laser: 455 nm ± 5 nm Blue Light Height Measuring Laser: 850 nm ± 5 nm Infrared Light |
| Laser Power | 10 W ± 1 W |
| Laser Spot Dimension | 0.03 * 0.14 mm² |
| Working Temperature | 0 ℃–35 ℃ |
| Max Engraving Speed | 400 mm/s |
| Max Cutting Thickness | 5 mm (Basswood Plywood) |
| Laser Safety Class for Laser Module | Class 4 |
| Overall Laser Safety Class² | Class 1 |
| Engraving Area | H2D: 310 * 270 mm² H2S: 310 * 260 mm² |
| XY Positioning Method | Visual Positioning |
| XY Positioning Accuracy | < 0.3 mm |
| Z Height Measuring Method | Micro Lidar |
| Z Height Measuring Accuracy | ± 0.1 mm |
| Flame Detection | Supported |
| Temperature Detection | Supported |
| Door Sensor | Supported |
| Laser Module Installation Detection | Supported |
| Safety Key | Included |
| Air Pump | Built-in; 30 kPa, 30 L/min |
| Ventilation Pipe Adapter Outer Diameter | 100 mm |
| Supported Material Type | Wood, rubber, metal sheet, leather, dark acrylic, stone, and more |
Cutting Module
| Cutting Area | H2D：300*285 mm² H2S：297.5*300 mm² |
| Drawing Area | 300*255 mm² |
| Supported Pen Diameter | 10.5 mm–12.5 mm |
| Cutting Mat Type | LightGrip and StrongGrip Cutting Mats |
| Blade Type | 45°*0.35 mm |
| Blade Pressure Range | 50 gf–600 gf |
| Max Cutting Thickness | 0.5 mm |
| Blade and Pen Recognition | Supported |
| Cutting Mat Type Detection | Supported |
| Supported Image Type | Bitmap and Vector Images |
| Supported Material Type | Paper, PVC, vinyl, leather, and more |
¹ To ensure the heatbed quickly reaches the needed temperature, the printer will maintain maximum power for about 3 minutes.
² When the printer’s protection is complete and properly working, the printer and laser module work as a class 1 laser product.
Applications
- Large prototype and concept model printing.
- Functional parts production with engineering filaments.
- Single-nozzle high-throughput printing for small manufacturing runs.
- R&D, product development, and proof-of-concept fabrication.
- Education and labs requiring a reliable, upgradeable large-format desktop printer.
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