What printer and what orientation did you print these?
Almost looks like some of the ones I’ve done in abs where I didn’t get proper cooling (turned to have the bow front 45°, 90° being straight toward the rear of the printer for reference) either from my fan settings or orientation, could try increasing the fan speed? I know you said you’ve dropped the temperature but personally I still find I need to have the part cooling fan on (do print enclosed though so YMMV)
How dry is the filament, afaik tpu is hygroscopic (been a while since I’ve printed with it unfortunately), I’ve seen messy bow show up on less dry filament, always worth a try anyhow just to remove variables.
It was from the bag and been printing in my enclosure, so that alone tends to dry out my filament but it is my first time with TPU and I know it soaks up moisture. I’ve never had issues with wet filament, would it cause an issue in 1 area like that?
morbidcactus@lemmy.ca 6 months ago
What printer and what orientation did you print these?
Almost looks like some of the ones I’ve done in abs where I didn’t get proper cooling (turned to have the bow front 45°, 90° being straight toward the rear of the printer for reference) either from my fan settings or orientation, could try increasing the fan speed? I know you said you’ve dropped the temperature but personally I still find I need to have the part cooling fan on (do print enclosed though so YMMV)
How dry is the filament, afaik tpu is hygroscopic (been a while since I’ve printed with it unfortunately), I’ve seen messy bow show up on less dry filament, always worth a try anyhow just to remove variables.
AngryishHumanoid@lemmynsfw.com 6 months ago
Prusa MK4S, standard Benchy orientation. I haven’t tried adjusting cooling yet, just using the default FLEX settings but I can try that.
morbidcactus@lemmy.ca 6 months ago
Could try turning the bow forward and see if that changes anything. From what I’ve read, start low with the fan, like 10-15%.
All else fails, still say worth drying it if you can, I’ve had some really damp spools fresh out of the bag before.
AngryishHumanoid@lemmynsfw.com 6 months ago
It was from the bag and been printing in my enclosure, so that alone tends to dry out my filament but it is my first time with TPU and I know it soaks up moisture. I’ve never had issues with wet filament, would it cause an issue in 1 area like that?