I’m trying to print Gaskets for the AMS Riser out of TPU.
I bought a 95A white TPU from 3DJake (not just the shop but 3DJake as brand)
First i dried the TPU for 24h on the second mode on my Polydryer.
Then i calibrated Temperature with a temperature tower in Orca Slicer, best result for me was ant 220C°. 220C° had the best overall finish, least amount of stringing on the Pin (barely any) and the overhangs where printed the best.
Flow ratio was next. That was a bit hard i have to admit but after printing like 35 of those chips altogether, i ended up on flow ratio of 1.07.
Pressure Advance i used the line method on a smooth plate and got the best result with 0.288. Had to do the test multiple times because on low values there was no difference at all. Started to see changes on the line from ~0.25
On the retraction test i saw no stringing at all with the default value of 0.4mm
Max volumetric flow was good until ~7mm³/s, i still set it to 3.5mm³/s to avoid potential issue when printing more complex shapes than a straight line.
Now to the print
I printed the part with a layer height of 0.16mm and i turned down overhang print speed to 10mm/s on all levels
On almost all edges and on the post the nozzle leaves thick strands of filaments on the print and at this point, i don’t know what else to change to continue troubleshooting.
tl;dr Calibrated Filament, nozzle leaves strands of Filament on edges and thin posts
