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Bambu Lab P2S: power use and running cost

P1S successor with a 1000 W AC bed, faster heat-up, auxiliary chamber heater and AMS 2 Pro support. 256 × 256 × 256 mm build volume, enclosed.

200 Waverage while printing
8 Widle / standby
1000 Wpeak while heating
1000 Wpower supply rating
2.00 kWhper 10-hour print
$0.34per 10-hour print at $0.17/kWh
$549typical price (2025)
600 mm/smax speed · 300 °C nozzle · 110 °C bed

Power figure: measured. Bambu Lab wiki power-consumption table: 7.3-8.2 W standby, 200 W steady-state PLA at 110 V; maximum 1000 W at 110 V (1200 W at 220 V).

Electricity cost for a print on the Bambu Lab P2S

Printer and print
W
Measured: Bambu Lab wiki power-consumption table: 7.3-8.2 W standby, 200 W steady-state PLA at 110 V; maximum 1000 W at 110 V (1200 W at 220 V).
W
When on but not printing
hours
/day
For the monthly figure
Tariff
USD/kWh

Full cost of a print on the Bambu Lab P2S

Pre-set with this printer's wattage and price for depreciation. Enter grams and hours from your slicer.

Filament
g
From your slicer after slicing
USD/kg
Printing
hours
W
Typical while printing, not the PSU rating
USD/kWh
%
Share of prints that fail and get reprinted
Printer wear, labour and selling price
USD
0 to ignore depreciation
hours
5,000 h ≈ 3 years of regular use
USD/h
Nozzles, belts, lubricant, fans
parts
min
Slicing, setup, removal, cleanup
USD/h
USD
Sanding, paint, inserts, glue
USD
%
Profit on top of the true cost

Layer heights that suit the Bambu Lab P2S'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 height0.080.100.120.150.160.200.240.250.280.30
On a full step?yesno → 0.12yesno → 0.16yesyesyesno → 0.24yesno → 0.32

Basis: estimated. Inherits the P1S Z layout (Bambu wiki 'replace Z belt timing pulley' for P2S, Z-axis leadscrew kit FAC178): three lead screws belted to one motor; Tr8x8 lead and 1:1 pulley ratio assumed, no firmware config published. Open in the magic layer height calculator.

Questions about the Bambu Lab P2S

How many watts does the Bambu Lab P2S use?

About 200 W on average while printing PLA, 8 W when idle and up to 1000 W while heating. Bambu Lab wiki power-consumption table: 7.3-8.2 W standby, 200 W steady-state PLA at 110 V; maximum 1000 W at 110 V (1200 W at 220 V).

How much does it cost to run a Bambu Lab P2S for 24 hours?

4.8 kWh, which is $0.82 at $0.17/kWh (US average) or about £1.25 at UK rates.

Does the Bambu Lab P2S use a lot of electricity?

No. Running it 8 hours a day for a month costs roughly $8.16 at US rates — comparable to a desktop computer.

What are the best layer heights for the Bambu Lab P2S?

The Bambu Lab P2S'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.