Buy The Frame Here: https://store.bicks.us/
Make sure to print out of TPU, and with the side mount flush against the bed. Support needed, unless your printer has godlike bridging on TPU. I'd recommend 2-4 walls, and infill is best at 10% or higher on a 0.4mm nozzle with 0.2mm layer height.
The design is based around the GoPro Hero 5/6/7, and keeps it at 20deg. The design comes in two versions: One with my logo, one without.