Bambu Lab P1S

# Bambu Lab P1S

Overview

The Bambu Lab P1S is a fully enclosed CoreXY FDM printer built around Bambu Lab's P1 motion platform. It combines a 256 × 256 × 256 mm build volume, automatic bed leveling, vibration compensation, pressure-advance-based extrusion control, auxiliary part cooling, chamber airflow management, an activated-carbon filter, and optional AMS multi-color printing.

Bambu Lab publishes a maximum toolhead movement speed of 500 mm/s and maximum toolhead acceleration of 20,000 mm/s². That 500 mm/s figure is not a universal print-speed rating for every filament or model, so this listing does not map it directly into the catalog's `maxPrintSpeedMmS` field.

The P1S has a 300°C all-metal hotend, 100°C maximum build-plate temperature, and a fully enclosed body, making it better suited than an open-frame printer to ABS, ASA, and other temperature-sensitive materials. The chamber is enclosed but not actively heated.

The stock hotend uses a 0.4 mm stainless-steel nozzle, and the standard extruder hardware is also designed primarily around general-purpose materials. Bambu Lab specifically advises upgrading to hardened-steel hotend and extruder components before regular use of abrasive carbon- or glass-fiber-filled filaments.

For current pricing and availability, see the official Bambu Lab P1S US store page. For current technical documentation, see the Bambu Lab P1 Series Wiki.

Key Strengths

• Fully enclosed CoreXY architecture
• 256 × 256 × 256 mm build volume
• Up to 500 mm/s maximum toolhead movement speed
• Up to 20,000 mm/s² maximum toolhead acceleration
• 300°C all-metal hotend
• 100°C maximum build-plate temperature
• 32 mm³/s published hotend flow under Bambu Lab's stated ABS test
• Automatic bed leveling
• Automatic Z calibration
• Vibration compensation
• Pressure Advance / extrusion compensation
• Auxiliary part-cooling fan
• Chamber temperature-regulator fan
• Activated-carbon filtration
• 1280 × 720 chamber camera
• Filament runout detection
• Power-loss recovery
• Optional AMS / AMS 2 Pro multi-color workflows
• Up to 16 colors with a supported multi-AMS configuration

Best For

1. General-purpose desktop FDM printing
2. ABS and ASA parts
3. PETG and functional prototypes
4. Engineering prototypes
5. Jigs and fixtures
6. Educational use
7. Multi-color printing with optional AMS
8. Small-batch production

Technical Specifications

Critical speed note: Bambu Lab's official specification is 500 mm/s maximum toolhead movement speed. Actual printing speed depends on material, volumetric flow, geometry, cooling, acceleration, layer height, and slicer settings.

Build-volume note: Bambu Studio may reserve a small part of the nominal build area for cutter or safety clearance in some conditions. Follow Bambu Lab's current Wiki guidance when attempting to use the full nominal 256 mm height or full XY area.

Material Compatibility

Bambu Lab separates P1S material support into ideal and capable groups.

Ideal Materials

• PLA
• PETG
• TPU
• PVA
• PET
• ABS
• ASA

Capable Materials

• PA
• PC

The enclosure makes ABS and ASA substantially more practical than on an open-frame printer, but the P1S still lacks active chamber heating. Large warp-prone PA or PC parts can therefore be more demanding than the same material on a printer with controlled chamber heat.

For indexed material examples, compare Prusament PETG, Prusament ASA, and Prusament TPU 95A.

Carbon-Fiber and Glass-Fiber Materials

The stock P1S uses a stainless-steel nozzle and standard extruder components.

Bambu Lab's own maintenance guidance warns that stainless steel is not ideal for regular abrasive-material use and shows that carbon-fiber filament can rapidly enlarge the nozzle orifice.

For repeated printing with materials such as:

• PLA-CF
• PETG-CF
• PA-CF
• PA-GF
• PC-CF
• Other abrasive composites

Bambu Lab recommends upgrading to:

• Hardened-steel hotend / nozzle
• Hardened-steel extruder gear

A 0.6 mm hardened nozzle is also commonly preferable for fiber-filled materials because it reduces clogging risk.

Important: The P1S can be upgraded for abrasive composites, but stock P1S hardware should not be described as ideal for routine CF/GF printing.

For a demanding indexed composite example, see Prusament PC Blend Carbon Fiber.

Enclosure and Thermal Management

The P1S is fully enclosed but does not have a dedicated chamber heater.

Its thermal-management system uses:

• Enclosed plastic-and-glass shell
• Auxiliary part-cooling fan
• Chamber temperature-regulator fan
• Control-board fan
• Hotend cooling fan

The enclosure helps stabilize the print environment for ABS and ASA, while the chamber fan can remove excess heat when needed.

For PLA and some low-temperature materials, Bambu Lab may recommend opening the enclosure or removing the top glass depending on bed temperature and ambient conditions to reduce heat-creep risk.

Activated-Carbon Filtration

The P1S includes an activated-carbon filter.

Activated carbon can help reduce odors and some volatile organic compounds generated during printing, particularly with materials such as ABS and ASA.

It is not a HEPA particulate filter and should not be treated as a substitute for appropriate room ventilation.

Safety note: When printing higher-emission materials, use suitable ventilation and follow the filament manufacturer's safety guidance even when the printer's carbon filter is installed.

Automation

The P1S automates the main setup steps that typically require manual calibration on traditional desktop printers.

Standard functions include:

• Automatic bed leveling
• Automatic Z-offset calibration
• Vibration compensation
• Extrusion / pressure-advance compensation
• Filament runout detection
• Power-loss recovery
• Camera monitoring
• Timelapse support

The P1S does not use the micro-lidar system found on some Bambu flagship platforms, so lidar-based first-layer inspection or similar X1-series functions should not be attributed to it.

Camera and Remote Monitoring

The integrated chamber camera is specified at:

• 1280 × 720
• 0.5 frames per second

It supports:

• Remote visual monitoring
• Timelapse capture

This is a low-frame-rate monitoring camera rather than a high-frame-rate video system.

AMS Multi-Color Printing

The P1S is compatible with Bambu Lab's AMS ecosystem.

Bambu's current store documentation lists compatibility with:

• Original AMS
• AMS 2 Pro

A supported multi-AMS configuration can reach up to 16 colors.

The AMS can automate loading and unloading, but material compatibility still matters.

For example:

• Standard TPU is generally not a normal AMS material.
• Abrasive CF/GF materials can have nozzle/extruder requirements.
• Moisture-sensitive materials should be kept dry.
• Different polymers may have incompatible bed or chamber requirements.

Multi-color capability is therefore not the same as universal multi-material compatibility.

Connectivity

The P1S provides:

• 2.4 GHz Wi-Fi
• Bluetooth BLE 5.0
• MicroSD storage
• Bambu Studio desktop control
• Bambu Handy mobile control

Bambu Lab does not list native Ethernet for the P1S.

The printer's Wi-Fi specification is IEEE 802.11 b/g/n in the 2.4 GHz band rather than dual-band Wi-Fi.

Software

The primary slicer is Bambu Studio.

Bambu Lab also notes that third-party slicers capable of exporting standard G-code can be used, although certain Bambu-specific functions may not be available outside the official workflow.

Bambu Studio provides:

• Printer and filament profiles
• Multi-color / AMS preparation
• Remote job transfer
• Calibration tools
• Variable layer height
• Support generation
• Timelapse and device management

P1S vs P2S

The Bambu Lab P2S is the newer P-series platform and should be part of the buying decision when comparing current models.

The P1S remains attractive when its price is substantially lower, while P2S is the more current platform for buyers who prioritize newer hardware and features.

P1S vs Larger Engineering Printers

For users who need active chamber heating or larger engineering-material capability, compare the Bambu Lab H2D and Creality K2 Plus.

Those platforms target more demanding high-temperature workflows and larger parts, while the P1S remains a compact, simpler desktop option.

Practical Strengths

The P1S remains compelling because it combines:

• Mature CoreXY hardware
• Enclosure
• Automatic calibration
• Good general-purpose material support
• AMS compatibility
• A large installed ecosystem
• Replaceable and upgradeable wear components

Its biggest limitations compared with newer engineering-focused machines are the lack of active chamber heating, the stock stainless-steel abrasive-material hardware, the low-frame-rate camera, and the simpler display.

Callout Section

Recommended use: Choose the P1S when you want a mature enclosed CoreXY printer for PLA, PETG, ABS, ASA, TPU, general engineering prototypes, and optional AMS multi-color printing at a lower cost than newer Bambu platforms. Upgrade the hotend and extruder before making abrasive CF/GF materials a routine workflow.

Frequently Asked Questions