TPU Settings for 3D printers
These settings were tested on Prusa MK4S. First, loosen the two idler screws approx. 1.5 turns. A good method is to loosen the idler screws a little, load the TPU like any other filament, and loosen a bit more during the purging phase if the filament is not coming out of the nozzle. Don't forget to tighten back up when printing with other filaments.
Speed for print moves
Perimeters: 20
Small perimeters: 20
External perimeters: 20
Infill: 15
Solid infill: 15
Top solid infill: 15
Support material: 15
Gap fill: 15
Speed for non-print moves
Travel: 150
Modifiers
First Layer Speed: 30
The Hilbert curve on the bottom might make it easier to pull the print off the plate, but is probably not necessary on the top. A textured bed is recommended for easier removal as well.