Flexible coupling to join together shafts of the same or different shape /diameter.
It uses the hobby servo motor rubber vibration dampers (see the explosion view schematic).
The screws and nuts retaining the shafts are M3. The other screws are plastic screws diameter 2.5mm or 2mm (files named with _m2_screws suffix).
Available coupling ends:
M3, M4, M5, M6, M7, M8, square 6x6mm, and hex (drill bits standard)
See it in action here: https://youtu.be/L2u_TQ8SJbs
Licensed under The TAPR Open Hardware License
If you are a curious maker / "tinker" / hacker, have a look at my blog: