That’s a bowden extruder, you’ll have problems with TPU.
Try PETG, just dial up the retractions a bunch and slow it down.
Comment on I want to branch out from PLA. Should I try ABS or TPU?
akilou@sh.itjust.works 3 weeks agoI don’t know what a direct drive extruder is but I have a Bambu A1
ikidd@lemmy.world 3 weeks ago
SapientLasagna@lemmy.ca 3 weeks ago
A1 has a direct drive extruder. It does function as kind of a hybrid thing with the AMS though. Use of the AMS with TPU isn’t recommended, but there are a couple of harder TPU filaments that supposedly work.
ikidd@lemmy.world 3 weeks ago
Oh, ok. Every picture I saw made it look like a bowden extruder sitting on the end of the X gantry, with the tube going over to the hotend.
earphone843@sh.itjust.works 3 weeks ago
A direct drive extruder is one where the motor that runs the filament sits right above the hotend. Since TPU is squishy, the long tube from a Boden setup gives it too much room to squish.