I made this tool for my Dad's rehabilitation after hand injury.
You can use almost any print material, I've used PETG, 15% ijnfill, 0.4 nozzle, 0.2 mm layer height.
Use standart "money" rubber bands to adjust tension.
Finger_Trainer_Hand_Therapy_Tool_rehabilitation_v8.step | 694.2KB | |
Trainer_main.stl | 921.9KB | |
Trainer_ring.stl | 415.0KB |