Bambu Lab P1P

The Bambu Lab P1P is the open-frame version of the P1S, designed for PLA, PETG and TPU without active chamber heating (256×256×256 mm build volume, advertised 500 mm/s, compatible with a four-spool AMS). Owners come here to decide between upgrading to a P1S or building a DIY enclosure from acrylic or IKEA Lack panels, to debug stability issues on long PETG runs, and to source community-printable enclosure panels with real numbers on noise, footprint and chamber temperature.

The most common questions are DIY enclosure builds, what materials are realistic without a closed chamber, bearing noise after the first hundreds of hours, and the cost of ready-made P1S upgrade kits. Without active chamber heating, ABS gives inconsistent results — warping and layer separation. If you just unboxed it, start with the first-layer guide, LiDAR calibration and AMS Lite. After six months, look at printable enclosure panels and a real-cost comparison of a P1S upgrade vs a DIY enclosure. Before a long PETG run, check the bearings and first-layer geometry.

Related reads: the cross-printer FDM defect troubleshooting hub and the P1P card.