Bowden tube friction
Is there some trick to getting my UHF to be able to UHF? I can't seem to print over about 12mm/s flow rate. After lots of testing, its because of friction in the bowden tube.
I have tried using large 3mm ID tube, and using the capricorn tube, all sorts of stuff.
Is there some trick to routing it in a way to make it smooth? Do I need to hang my filimanet on the ceiling and remove the top enclosure panel and let it feed straight down?
If I remove the PTFE and feed filament straight into the extruder, it feeds super fast. Its all related to having to pull through the tube.
And if I print over 12mm/s feed, I get cracks in the walls...But, thats dumb, whats the point of UHF if I can't feed fast enough?
2 Replies
A) What is your extruder
B) What material
C) What temperature
If the bowden tube is the problem, check its path.
Does it work better when the tube is straight (so not routed through the back of the printer for example)?
Avoid sharp corners, kinks in the filament etc.
Check the tube by hand if and where it might stick.