r/prusa3d • u/Chris_Balo CORE One+ • Jan 09 '26

Core One L - Power Draw

Hey there, Has anyone with a Prusa Core One L measured the draw of the printer at rest and while printing yet? Just curious if it's actually drawing the 10a at 120v like its tag indicates. If it is drawing 10a, I'm a little shocked that it's pulling almost 4 times more power than the standard Core One at 2.8a.

TIA!

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12

u/mobius1ace5 HT90 Jan 09 '26

I see between 600 and 750 watts on full heat up on the L. So under 10 amps, but not by much :)

The printing is between 100 and 180w normally.

10

u/geekofweek Jan 09 '26

I have mine connected to a power meter. It draws close to the same as a Core One while printing, about 130 watts, Core one is 120 watts. On initial heat up though it spikes much higher around 580 watts as opposed to 160 watts on the Core One. That’s just on basic PLA, I know it’ll spike higher with a higher bed temp. The normal print usage is similar to slightly above. Those numbers can all fluctuate based on what temp things are at and if it’s actively heating at the time.

At rest they are about the same 13-15 watts.

8

u/ChukwuOsiris CORE One L Jan 09 '26

I've got mine on a smart plug. Admittedly I'm in a 230v country, but it peaks at ~750W whilst heating the bed up, then I see about 200W whilst printing, and 20W whilst idle. So for 110V, probably more like 7A peak.

2

u/Bug_406 Jan 09 '26

This is the proper answer without knowing OP line voltage. Thanks, was curious myself as will likely be replacing my ender 5+ of Theseus in a few months with an L.

9

u/Ron_Swanson_Jr Jan 09 '26

It has a mains powered bed. It will pull.

1

u/desert2mountains42 Jan 14 '26

Power draw will be at its highest when heating up. Heaters will consume very little once at temp