Thumbcuff

Please note, that you are able to open the cuffs by yourself with enough force, because of the stiffness of PLA.

For a finished thumbcuff, you need:
-1x "main" body
-1x "up"per body
-2x "side
-2x "safe"

and 2 springs with a diameter of 5,5mm (photo)

The key is a normal handcuff key
(for example: https://www.thingiverse.com/thing:752482)