To help extruder with super flexible TPU you need to get rid of the ptfe tube and place spool above printer, so it can easily extrude filament.
so i combined some cool models and made this remix with roller.
Now Such TPU as FD-Plast can be printed with speeds 30-60mm/s
1. k1-top-spool-holder-v2-side-supports – taken from original model: https://www.printables.com/model/655219-creality-k1-top-spool-holder
2. Roller – completely taken from https://www.thingiverse.com/thing:3020026
also can be printed without supports, divided in two parts: https://www.thingiverse.com/thing:3055046
3. Guide Two-sided – just mirrored https://www.thingiverse.com/thing:3020026 so it can be mounted on both sides.
4. Guide mount – redesigned myself, to be compatible with the roller
For assembly you need:
1. 608 bearing (8x22x7) - 2 pcs
2. 4x16 DIN912 Screw - 8 pcs
All orientations can be seen on pictures
Supports only needed for Guide mount.
Can also be found on thingeverse: https://www.thingiverse.com/thing:6349596
The author remixed this model.
Made roller holder two sided
adapted top spoolholder to be compatible with the roller