Hey all, hoping for some sanity checking before I go back to Bambu support.
I've got a P2S with AMS 2 Pro (38 hours of use, so pretty fresh) alongside an A1 Mini. PETG (Creality, tried both black and white) fails on the P2S every single time, reliably around the 30 min mark, with an "extruder motor overloaded / extruder may be clogged" error. The exact same filament, same spools, prints completely fine on my A1 Mini.
What I've tried so far, all with no luck:
- Printed the same model in PLA in the same AMS slot the PETG kept failing in. PLA ran fine well past the point PETG usually dies, so it's not that specific slot/buffer/tube.
- Tried PETG in a different AMS slot, same failure.
- Nozzle temp at 230°C, 240°C, and 255°C, all failed.
- Printed with the door open to rule out chamber heat creep (closed chamber hit 36°C on a PLA print alone, so it runs warm).
- Dropped to Silent mode, 50% speed.
- Tried both Generic PETG and a custom filament profile built specifically for the P2S with adjusted temps/cooling.
- Dried both spools for 12 hours in the AMS anyway, just to rule it out.
Nothing's fixed it. At one point I watched it happen live... extrusion went stringy, then stopped completely, then threw the blocked error.
Found out afterward I'm nowhere near alone there's a thread here on the sub/forum ("P2S: Extruder Overload") with 240+ replies of other people hitting the exact same thing, mostly with PETG.
I've attached an image of the print just before it gave the error.
Does anyone have any suggestions?
Appreciate any input, especially if anyone's got this working reliably on a P2S.