After trying a couple of cases for my YI Action Cam I decided to try to print one for use with the GoPro chest mount.
With the classic one that you buy on Amazon, while recording mountain bike videos, I experienced two problems: a loud background rustle and a limit in the useful inclination.
Using the classic case, the sound problem I think is due to a rustling that occurs inside the case. Use this printed case leaves the microphone exposed instead.
Download: https://v1.tinkercad.com/things/hG18RYlPKZ6
In addition to the printed parts, the following screws and nuts are required for assembly:
- 4x screw M3x30mm
- 4x screw M3x15mm
- 8x self-locking nut M3
The base compatible with GoPro support is not integrated in the case, this is to allow everyone to develop new supports for different uses.
Emiliano Carlesi's blog 