This is a big poop bin/chute/bucket/holder or what ever you want to call it, for the Bambu Lab P1* and X1* printers.
This does NOT require any magnets or anything else!
Just print and place back of the printer. It can hold a lot of filament poop so you don't need to empty it so often.
Total height is 21.3 cm, width 10.3 cm and depth approx 9.2 cm.
NOTE: It's to big if you are using the standard filament holder in the back. I recommend you print something like this:
https://www.printables.com/model/30887-filament-roller or
https://makerworld.com/sv/models/16172#profileId-18921
You are gonna do it anyway sooner or later.