Root 3 Adapter for 43mm Spindle Mount

I use a Kress style spindle and an Chinese aluminium mount for it. There are some different style spindle mounts out there. Therefore I modelled mine since it has the drawings as public info.
To fix it on the MGN Carts I designed Blocks with 4 Holes in up and down and a plate to go across from block to block and accept the aluminium mount on the other side in the middle. The plate is plywood for rigidity.

The part "Spannhaldshalter einfach" has to be printed a second time but mirrored, since