Bambu Lab P1S: power use and running cost
Enclosed CoreXY workhorse; the best-selling mid-range printer of 2024-2025, usually bought as the AMS Combo. 256 × 256 × 256 mm build volume, enclosed.
Power figure: measured. Bambu Lab wiki power-consumption table: 5.2-6 W standby, 105 W average PLA, 140 W ABS; rated 350 W at 110 V (1000 W at 220 V).
Electricity cost for a print on the Bambu Lab P1S
Full cost of a print on the Bambu Lab P1S
Pre-set with this printer's wattage and price for depreciation. Enter grams and hours from your slicer.
Layer heights that suit the Bambu Lab P1S's Z axis
Z moves 0.0400 mm per full step (lead screws driven by belt, 8 mm per motor revolution, 200 steps/rev, 400 steps/mm). Whole multiples of that are "magic" heights: every layer lands on a full step instead of a less accurate microstep.
| Layer height | 0.08 | 0.10 | 0.12 | 0.15 | 0.16 | 0.20 | 0.24 | 0.25 | 0.28 | 0.30 |
|---|---|---|---|---|---|---|---|---|---|---|
| On a full step? | yes | no → 0.12 | yes | no → 0.16 | yes | yes | yes | no → 0.24 | yes | no → 0.32 |
Basis: estimated. Same Z drive as the P1P/X1: three Tr8x8 lead screws belted to one motor (Bambu wiki Z lead-screw and Z timing-pulley guides); 8 mm per motor rev assumes a 1:1 pulley ratio, microsteps assumed 1/16. Open in the magic layer height calculator.
Questions about the Bambu Lab P1S
How many watts does the Bambu Lab P1S use?
About 105 W on average while printing PLA, 6 W when idle and up to 350 W while heating. Bambu Lab wiki power-consumption table: 5.2-6 W standby, 105 W average PLA, 140 W ABS; rated 350 W at 110 V (1000 W at 220 V).
How much does it cost to run a Bambu Lab P1S for 24 hours?
2.5 kWh, which is $0.43 at $0.17/kWh (US average) or about £0.66 at UK rates.
Does the Bambu Lab P1S use a lot of electricity?
No. Running it 8 hours a day for a month costs roughly $4.28 at US rates — comparable to a desktop computer.
What are the best layer heights for the Bambu Lab P1S?
The Bambu Lab P1S's Z axis moves 0.0400 mm per full motor step (8 mm per revolution, 200 steps). Layer heights that are whole multiples of that — 0.08, 0.12, 0.16, 0.2, 0.24, 0.28, 0.32 mm — avoid microstep rounding. 0.1, 0.15, 0.25 mm are not exact multiples.