Comment on Trouble keeping a top-heavy TPE part on the bed
ExtremeDullard@lemmy.sdf.org 6 days ago
I applied some glue to the sheet and it didn’t increase the adhesion by much, but it increased it enough and the print went through okay:
However, now I have another problem: I tried to print another one with the same material and the head started to make clicking noises mid-print and stopped flowing 😢 I’m not sure what’s going on with this now. Maybe I need to raise the temperature or something.
roofuskit@lemmy.world 6 days ago
Jam it clog. Time to back the filament out and disassemble your extruder to service it.
ExtremeDullard@lemmy.sdf.org 6 days ago
It’s not clogged: I fished out the mangled piece of TPU and printed something else with it straightaway - several times. Not sure why it starts clicking like that with that filament. Worse: it seems to do it almost always at the same point in that print.
beeb@lemm.ee 6 days ago
Did you losen the idler tension screws? TPE requires that the tension is very very light otherwise it tends to buckle around the gear before entering the nozzle tube.
ExtremeDullard@lemmy.sdf.org 5 days ago
You were right: after some trial and error, I backed off both idler tensioning screws 2 full turns and then the print went without a hitch. It looks cleaner too. And I don’t know if it’s related (now sure how it would be, but who knows…) the part didn’t warp. First time I get a complete straight TPU part.
Thanks for the tip!
ExtremeDullard@lemmy.sdf.org 6 days ago
I wasn’t aware. I’ll look into this tomorrow. Thanks!
Damage@feddit.it 6 days ago
Usually that’s a partial clog, and it happens at the same point because it’s triggered by something, usually retractions. Is that an area with many smaller extrusions?
I’m not familiar with the Prusa hotend, but make sure that your nozzle is screwed on completely and, if you have a detachable heartbreak, check that too.