Preston Cinema HU3 Keychain

thingiverse

I personally like scaling it down to 17% for keychain size. At this scale, the keychain hole is 2.2mm in diameter. If you're using jump rings, I recommend at least 8mm to connect to other jewelry or keyrings. The files include a completely solid design and one that's split the handunit into two faces, with the knob as its own file. The three-way split allows for all three models to be printed face up for maximum detail and then glued together.