Direct Drivinator PLUS
thingiverse
PETG is probably the best choice for this, however my PLA prototype is still in use no issue so far. Remember to fit the tension spring retainer screw first. This was a more sturdy, less flexible version from my previous model.
Download Model from thingiverse
With this file you will be able to print Direct Drivinator PLUS with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Direct Drivinator PLUS.