Toolhead is slamming the wall above the poop chute. It’ll then purge some filament and then move to the front before slamming into the same spot above the poop chute and purging again. This process repeats for around a minute and a half. Then the build plate moves up and as the nozzle travels, it will scrape the build plate.
The printer selection is correct in the slicer.
I’ve used multiple different stl files and filament.
I’ve done a factory reset and calibration.
The machine has been working without issue for 3 months. The issue started last night.
I’ve reached out to BL Support, but I’m hoping the community can give me some insight to why this is happening.
What type of fault are you getting?
I had a problem and that was one of the signatures of the problem. I also plowed a diagonal line across both sides of what was a new but non-Bambu Lab build plate. It was no slouch of a groove either. It was deep. The groove was a geometric line combination of the X/Y traverse from front right corner to purge chute. Lines were a perfect mirror of each other. So don’t flip the plate over.
There aren’t any error messages.
Every time the toolhead moves to the poop chute, it slams into the wall. Even just unloading filament manually on the machine.
Be sure it isn’t just slamming that lever in the back of the chute. There is a flapper in the chute that the toolhead can hit pretty hard on occasion. Normally that flapper just hangs open but when it is purging filament it pushes against that lever so the purged filament curls up into a ball instead of having a really long string of filament
Have you run it through the auto-calibration? Any time I other than removing build plate to clean and replace I send it through an auto-cal
I pulled back cover off to look at options for putting in some LED strip to better see, put cover back–> auto-cal
These machines do have some fle to them even though it may be imperceptible to human eye. Cheap insurance to make sure the printer X, Y, Z zero and span are correct going into a print.