The idea is not mine, I've seen it somewhere, but couldn't find it and decided to design my own version.
You just slide it onto your right x-axis idler of Prusa i3 MK3s printer.
Easy to deattach.
Here is a video how I've used it with Yi 4k Action Camera to make timelapses:
Supports:
Yes
Resolution:
0.2
Infill:
40%
Filament:
Fiberlogy Black PETG
Notes:
Use supports on build plate only. Print with PETG or something durable and heat resistant (not PLA).
Use 3 perimeters 30-40% infill grid.
The author hasn't provided the model origin yet.