Bambu Lab P1S vs Bambu Lab P2S
- Build volume is effectively the same on both, near 16.8 L.
- Per litre, the P1S is the cheaper space at $24 against $33.
- Only the P2S publishes a flow rate (40 mm³/s, roughly 500 mm/s of line speed), so the other's speed claim cannot be checked.
Bambu Lab
P1S
~$399 · 16.8 L
A first enclosed printer, or a second machine for ABS and ASA.
Bambu Lab
P2S
~$549 · 16.8 L
Someone who wants the P-series formula with the extrusion problems engineered out.
| P1S | P2S | |
|---|---|---|
| Approx. price | ~$399 | ~$549 |
| Build volumex × y × z converted to litres, so three numbers become one comparable one | 16.8 L | 16.8 L |
| Dimensions | 256 × 256 × 256 mm | 256 × 256 × 256 mm |
| Per litre | $24 | $33 |
| Type | FDM enclosed | FDM enclosed |
| Motion | CoreXY | CoreXY |
| Max flowthe hotend's rated volumetric flow — what actually caps print speed | not published | 40 mm³/s |
| Real line speedestimated from flow at a 0.4 mm nozzle and 0.2 mm layer | not published | 500 mm/s |
| Max speedthe manufacturer's claim — gantry movement, not extrusion | 500 mm/s | 600 mm/s |
| Hotend max temp | 300 °C | 300 °C |
| Bed max temp | 100 °C | 110 °C |
| Enclosure | Enclosed, unheated chamber | Enclosed, unheated chamber |
| Extruder | direct drive | direct drive |
| Auto level | strain-gauge | eddy-current |
| Hardened nozzle | No | Yes, as standard |
| Multi-material | AMS, 4 slots | AMS 2 Pro, 4 slots |
| True multi-material priceprinter plus the changer it is photographed with | ~$549 | ~$749 |
| Firmware | Bambu | Bambu |
| LAN-only mode | Yes | Yes |
| Camera | Yes | Yes |
| Assembly | Pre-assembled | Pre-assembled |
| Noise | 55 dB | 52 dB |
| Released | 2023 | 2025 |