My P2S worked fine for over 400 hours, but recently prints have started failing unexpectedly. The printed object suddenly gets knocked off the build plate, possibly due to a toolhead collision.
What I’ve tested:
- Replaced the nozzle with a new one.
- Completely disassembled and inspected the extruder twice. Everything is clean and moves freely.
- Cleaned the PEI plate thoroughly. Simple blocks print perfectly and adhere very strongly.
- Tested different PLA/PETG filaments, with and without AMS.
- Performed factory reset and full calibration.
- A Benchy printed successfully at reduced speed.
- The built-in Benchy also fails at normal speed.
I’ve attached a image
showing the failure.
Has anyone experienced something similar? Could this be related to the CoreXY motion system, Z-axis positioning, or toolhead mechanics? What should I inspect next?
I’d appreciate any suggestions before sending the entire printer back for warranty service.
This also failed
Video on reddit
I know, I know, this suggestion gets thrown around a lot, but in this case, it might actually be worth looking into:
- Could the filament gone bad?
- If that’s not the issue, maybe the printer is struggling to maintain a stable nozzle temperature?
- …or maybe even the opposite - just maybe - it’s ozzing - It’s hard to tell from the photos.
- While you’re at it, please check the extruder gear - it won’t take more than 5 minutes
What makes me think that? Those overhangs look pretty awful, to be honest. It almost looks like the filament isn’t melting properly anymore. No guarantee this is what’s causing your problem, of course, but it immediately caught my eye: those aren’t really overhangs anymore…
Just to give you an idea of what it should look like:
Probably because the filament isn’t melting or feeding properly. Add to that less-than-optimal infill, and you have the combination that causes prints to flip over.
I’d start by checking the nozzle temperature and the extruder gear - that doesn’t take very long. Then, if necessary, consider whether the filament has gone bad.
