Bambu Lab A1 vs P1S: Open vs Enclosed
The A1 and P1S share Bambu's polish, a 256mm build volume, and multicolor support — but they're different machines. The A1 is an open bed-slinger tuned for PLA and PETG; the P1S is an enclosed CoreXY that adds the heated, contained chamber engineering materials need.
In a hurry? Our top picks:
Quick verdict
Buy the A1 if you mostly print PLA and PETG and want the best value — it's cheaper, open, and easy to maintain. Buy the P1S if you want to print ABS, ASA, or other warp-prone engineering materials, where its enclosure is essential, or if you want faster CoreXY motion in a sealed, quieter box. Both support the AMS for multicolor.
Side-by-side specs
| Spec | Bambu Lab A1 | Bambu Lab P1S |
|---|---|---|
| Technology | FDM | FDM |
| Price | $299 | $399 |
| Build Volume | 256x256x256mm | 256x256x256mm |
| Max Speed | 500 mm/s | 500 mm/s |
| Min Layer Height | 0.08mm | 0.08mm |
| Enclosure | No | Yes |
| Auto-Leveling | Yes | Yes |
| Direct Drive | Yes | Yes |
| Max Nozzle Temp | 300°C | 300°C |
| Max Bed Temp | 100°C | 100°C |
| Multi-Color | AMS Lite | AMS |
| WiFi | Yes | Yes |
| Camera | Yes | Yes |
| Weight | 8.3kg | 12.95kg |
| Power Draw | 350W | 350W |
