I have a 3D Printer Alfawise U20. I tried to print few objects using TPU filament. Unfortunately, all my prints were failing because the filament was moving around the cog-wheel.
I finally designed and printed an updated version of the extruder piece which allows to drastically reduce the space between the exit of the cog-wheel and the entry of the hole.
And it works ! No more fail printing with TPU.
I uploaded the F3D file if you want to perform your own updates.
ERYONE 1.75 Grey
Layer height : 0.1 mm
Wall thickness : 1 mm
Top/Bottom thickness : 1 mm
Infill : 50%
Support : Yes
Remix of the original piece and update with Fusion 360