Once again I have a nozzle jam problem that I just can’t resolve. I have 7 P1S printers that suddenly started getting nozzle jams every few hours of print time. ALL 7 OF THEM. This started about 2 weeks ago, and the jams are usually resolved by pushing a pin up into the nozzle and then doing a cold pull.
For context, these printers are in an environment that is pretty stable temperature wise. I print with PETG exclusively. I print with Paramount filament that I have been using for years, and buy rolls by the case. I can’t be sure, but I want to hope that this issue started with a new case of filament that was just bad somehow, maybe old filament.
It seems like this is a classic case of heat creep, so I’ve been playing around with the temperatures to try and avoid it (even though I have printed with the same temps for 2+ years). Lowered the bed temp and lowered the nozzle temp. Slightly raised both temps. Increased chamber fan speeds, leaving the door open. Nothing has worked. At first I thought lowering the bed temp 5C helped, but it keeps happening and the bed adhesion isn’t as good either.
I am completely baffled by this, which is why I hope that it is just a bad batch of filament. As a test I’ll put a new roll of Paramount (from a new case) in one machine and a new roll of Bambu PETG in another machine and see what happens.
Super frustrating, especially when I usually get consistent prints all the time.