On day five at of my using my P1S, the lead screw is bound up and Z height can’t calibrate, print aborted. This is the second time. Why? What bound it up? Poop. PETG droppings in the form of strings find their way onto the rear lead screw. And I’m not the only one. I learned to look for it from others who had the same problem. Bambu Lab-- are you listening? This is a problem.
Afterthought: I should have said “Z-axis failed” print aborted.
Removing the filament tangle did not solve the problem.