Hi all, I received my brand new A1 last week and been printing most days. On one day I heard some clicking noises and saw that my extruder wheel wasn’t turning as it should. So far I’ve tried the following:
Push needle into nozzle
Various cold pulls
Took my extruder apart and cleaned the two gears that push the filament
Even after all those things I still can’t manage to push filament out. And when I do get to start a print it starts clicking at some random place and time into the print.
I used Bambu Lab PETG and PLA Basic on their plastic spool as well as Polymaker Polyterra PLA.
I’m literally lost for words and can’t figure it out so any help/insight would be much appreciated.
Did you remove the hotend to see exactly where the jam is? Some photos of the interior of the hotend would be nice. Did you try increasing the hotend temperature above that necessary for PETG and pushing the filament? Perhaps the PETG has caused some partial jamming that has gotten worse when using the other filaments that require a lower temperature.
Yes, I have removed the hotend several times and also tried heating it up a bit higher. The hotend seems perfectly clear as I can shine a flashlight through it.
Hello - I also have this problem. The wheel clicks/stops and the printer prints nothing. I have had the equipment for 2 weeks and have already written to support. I printed less than 1kg of filament and the prints were perfect. Currently the equipment is useless, I refilled the nozzles and still the same thing. I went a step further and ordered new nozzles, but it’s not about ordering new equipment after such a short period. Have you solved your problem yet?
make sure your hotend is seated properly i have found one time i had it slightly off and i think the filament was feeding into the top mteal guide which in turn would make it click since the filament couldnt enter the hot end properly
Most likely, I had garbage in the filament feeder - a hole right before it was inserted into the nozzle. I did Cold Pull three times, blew out the filament feeding tube and everything works fine and there is no crackling. With a flashlight, a toothpick, compressed air and a manufacturer’s cleaning rod - you can do it quite efficiently. Of course, I was panicked and in the meantime I ordered 3 new nozzles from the manufacturer’s website :> well, whatever it is… learning must be expensive The video turned out to be the most helpful YouTube " Unclogging Your Bambu Lab A1 Mini 3D Printer: A Step-by-Step Guide to Clearing Jams"
There are four screws on the back of the Heating Assembly that hold its 2 parts together. When I opened mine up, one screw pop-out at me (completely undone) and the other 3 were loose too. The wiki has pictures and instructions for tightening the screws.
Might be worth a check. I had never taken the Hotend Heating Assembly off my machine before so it was like this from the day I got it.
Make sure the filament cutter is in the right position. If you’ve taken the extruder apart, the filament cutter may not have slid back into the proper position during re-assembly, you have to pay attention to it.
The video turned out to be the most helpful YouTube " Unclogging Your Bambu Lab A1 Mini 3D Printer: A Step-by-Step Guide to Clearing Jams"