Bambu Lab
Bambu Lab P1S
Everything you need to complete your Bambu Lab P1S setup
The Bambu Lab P1S is the fully enclosed, quieter sibling to the X1C. It prints ABS, ASA, PA, and other temperature-sensitive materials reliably thanks to its sealed build chamber and HEPA+carbon filter. If you bought the P1S to print engineering-grade materials, your accessory needs differ slightly from a PLA-only printer.
What ships in the box
The P1S ships with a 0.4mm hardened steel nozzle, textured PEI plate, a small starter spool of PLA, AMS (in combo version), cleaning tools, and the power cable. Bambu Studio and Bambu Handy are free.
Material advantages of the P1S
Unlike the open-frame P1P, the P1S's sealed chamber enables ABS, ASA, PC (polycarbonate), and nylon printing without warping. The built-in HEPA filter with activated carbon handles the fumes these materials produce. For people who need parts that survive heat or UV exposure outdoors, the P1S unlocks materials that the P1P can't handle reliably.
Filament storage
Engineering filaments like PA (nylon) and PC are extremely moisture-sensitive. Even a few hours of exposure in a humid room can ruin a spool. Keep these stored in sealed containers with desiccant and use a filament dryer for spools that have been sitting open. The AMS has built-in humidity control for longer-term storage, but still let wet spools dry before printing.
Hardened steel nozzle
The P1S ships with a hardened steel nozzle, which is appropriate for abrasive materials. For PLA and PETG, a brass nozzle actually prints slightly smoother — you may want to swap to brass for non-abrasive filaments and keep hardened steel for CF, glow, and abrasive fills. Bambu's nozzle swapping is tool-free and takes about 30 seconds.
Build plates
The P1S includes a textured PEI plate. For high-temperature materials like ABS that stick too well to textured PEI, a smooth PEI plate releases more easily. Bambu sells high-temp and smooth variants. Keeping two plates on hand lets you swap surfaces in seconds based on the material you're printing.
Frequently asked questions
What's the difference between the P1S and X1C?
Both are enclosed, but the X1C has a Carbon-reinforced build chamber and the LiDAR scanner for first-layer inspection, spaghetti detection, and automatic flow calibration. The P1S is quieter (with vibration dampening) and has the HEPA+carbon filter, but lacks the LiDAR. The X1C is more capable; the P1S is better value and quieter.
Can the Bambu P1S print ABS reliably?
Yes. The sealed chamber is specifically designed for this. The build volume reaches around 40–45°C ambient during ABS prints, which prevents warping. Make sure you're using the ABS Bambu profile or a validated community profile — the exposure compensation and temperatures matter.
Does the P1S work with the AMS?
Yes. The P1S is AMS-compatible in the combo version. The AMS enables 4-color multi-material printing and internal filament storage. Note that not all filaments (like flexible TPU) work reliably in the AMS.
How do I keep the Bambu P1S build chamber at the right temperature for ABS?
Set the bed to 100–110°C and let the printer run a 5-minute warmup before starting the print — this raises the chamber ambient temperature to approximately 40–45°C, which prevents ABS warping. The P1S's sealed enclosure maintains this heat naturally during printing. Avoid opening the door during a print, as temperature drops cause layer delamination and warping on tall ABS parts.
Does the Bambu P1S have LiDAR?
No. The LiDAR sensor for first-layer inspection and spaghetti detection is exclusive to the X1 Carbon. The P1S has an internal camera for time-lapse recording and basic print monitoring, but it does not perform automatic first-layer or flow calibration using LiDAR. You can still run manual flow rate calibration through Bambu Studio's built-in calibration tools.
How often should I clean the Bambu P1S nozzle?
Cold pull cleaning (also called an atomic pull) is the most effective nozzle maintenance method and should be done whenever you notice under-extrusion, inconsistent first layers, or after printing abrasive filaments. Heat the nozzle to printing temperature, then cool it to 90°C for PLA or 120°C for PETG/ABS, and pull the filament out sharply. Repeat until the pulled filament tip comes out clean. For regular maintenance, a cold pull after every 3–5 spools keeps the nozzle performing well.
Pro tip
For ABS and ASA prints, run the bed at 110°C and let it soak at temperature for 5 minutes before starting the print. The build chamber needs to warm up, not just the bed surface. Cold ambient temperature in the chamber is the primary cause of first-layer warping and poor layer adhesion on engineering materials.
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