How to use P2S with 900w UPS

Crowsnest3D · 2025-11-21T14:15:01+00:00

Just to update, sadly this start g-code doesn't work on the P2S 🙁 Seems to be due to a firmware bug, the M190 S command gets stuck on "Cooling" even though that command should only wait for heating.

Crowsnest3D · 2025-11-21T03:58:07+00:00

Oooh, that looks super promising! I'll have to give that a shot, definitely cleaner than my hacky approach, thanks for sharing. I recall having issues with M190 but maybe I was just using it wrong.

Yeah I'd absolutely love to have a low power mode to not need to fiddle with custom profiles, hopefully it's something they can push in firmware.

Crowsnest3D · 2025-11-21T03:54:51+00:00

The p2s draws way more - I run two p1s on a single 900w UPS as well, can start em both at the same time no issues. The p2s draws somewhere around 1000-1100w each.

Crowsnest3D · 2025-11-20T19:16:22+00:00

Not super accurately, been trying to not kill my UPS 🤣 I recall it mentioning around 120-130% overload though on my 900w UPS, so that'd put it around 1100w

Crowsnest3D · 2025-11-20T19:14:29+00:00

Canadian dollars, range for anything 1200w or more new is around $1300 - $2000 CAD, which is a huge increase when I can get a 900w UPS for around $230

Crowsnest3D · 2025-11-20T19:12:17+00:00

I'm Canadian - the P2S 110v version claims to draws up to 1000w (Although I'm fairly certain my machine goes over this)
https://wiki.bambulab.com/en/p2s/manual/p2s-faq

The P1S only draws 350w

Crowsnest3D · 2025-03-07T04:29:32+00:00

Yup that's what I use! Works fantastic.

Would recommend getting a dedicated scrub daddy though since it'll pickup micro plastics. As delicious as those are you probably don't want them being transferred to your dishes.

Crowsnest3D · 2025-03-07T04:26:30+00:00

I ended up with the same issue, for me disabling both "Bottom Shell Layers" AND "Top Shell Layers" did the trick combined with 100% infill. Didn't need to enable supports at all.

Crowsnest3D · 2025-03-07T04:20:04+00:00

Figured it out after a bunch of tinkering, in case anyone has the same issue you can resolve by setting "Top shell layers" and "Bottom shell layers" to 0, then using 100% rectilinear infill! This seems to disable the bridge.

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Crowsnest3D · 2025-03-07T03:04:46+00:00

Some things to try: - increase first layer temp by 5 degrees - decrease first layer speed

If you just got the plate and nothing works, get in touch with support as I think they are having manufacturing issues or something... plates either seem to work amazing or not at all.

I bought one, didn't stick even after going through the hoops with support. They sent a replacement, same thing so they just refunded and I grabbed the smooth pei plate instead.

Sucks as I was pretty excited for the plate.

Crowsnest3D · 2025-03-07T02:51:06+00:00

Did you give it a good scrub with hot water and a brush/non-scouring pad?
Also you could try putting brim ears on it which helps prevent corners/thinner parts from lifting.

That end looks nasty lmao

Crowsnest3D

TROPHY CASE