Arduino parametric bumper case

The case can be generated with few parameters. Added rounded corners (also parametric).

Wall size is 3mm, more than enough. The photo shows a plexiglass of 6mm thickness, but next one I will do a 8mm version.

It can be optimised without pocketing by using multilayer stacked rings on a base 2mm thick.

Gcode is done for EMC2/Linuxcnc, with Heekscad.