The mount of the original model from JSund attaches to Prusa Mini without change.
The geometry of the arm and the platform for the camera are changed to my needs.
Use it as it is or modify it yourself :-)

I printed in PLA with 4 perimeters, 15% infill (Gyroid) and layer height 0.2mm.
Perfect look and rock solid.

The original model from JSund was designed for PETG. 
Might attach easier to the aluminium profile due to better elasticity of PETG --
you decide which material you use :-)

Happy printing!