Hello, good day. A few weeks ago, I acquired a Bambu Lab A1 with the AMS Lite. Initially, I had no problems and made a few prints, including multicolor ones, without any issues. However, for the past week or so, it has started to fail. There’s no way to start a print correctly. This only happens if I use slot 4 of the AMS. If I use the other 3 slots, whether together or separately, there’s no problem.
When starting a print, the AMS moves the filament towards the extruder and then immediately back out again, repeatedly, as if the extruder or nozzle is clogged or something. However, this is not the case. If I push the filament manually, it extrudes, and other filaments extrude without any issues. In the printer settings, when extruding manually, sometimes it works without problems, but other times I see the extruder wheel turning, but the AMS does nothing, and the filament doesn’t move at all.
In some prints, everything starts fine, but when it begins printing, it prints air because the AMS is not moving the filament at all, so the printer ends up extruding nothing. I’ve tried with another filament spool (the one I was using until now was official Bambu Lab PLA), and it does exactly the same thing.
At the moment im printing using other slots but i have a print that uses the 4th slot (and i want to be able to use all of them of course) and it just doesnt work.
As you can see in the images and videos, the printer extrudes what it cans, i suppose what it is inside the extrusor or something but then nothing more comes out of it, it keeps printing air and the ams motor doesnt move the filament at all.
