Dirkvl, could you provide corresponding solid model files (non-stl files) for those models which are currently at GitHub? Editing those stl files is a bit PITA.

For example the magnet hole diameters are about 0,2-0,3 mm too small and about 0,4-0,5 mm has to be cut off from other places to be able to fit the board inside the casing. The casing model required also about 1 % downscaling so that it doesn't drop off when attached and some other small modifications at least when printed with my 3d printer.