Z-Motor holder with precision Z-Axis calibration for Velleman K8200 / 3Drag

Extended Z endstop microswitch mounting plate was added to the motor mount plate, motor holder is exactly how it was.

Z endstop screw block was modeled from scratch, based on mr_cg's idea, however it's shorter and the screw is distanced further from Z gantry, so regulation is easier.

To assemble, you'll need:
* 4x M3x12mm screws and 4x M3 washer (I've used locking ones) to mount the motor
* 4x M3x20mm screws, 4x M3 nut and 4x M3 washer to assemble motor plate and holder
* 2x M3x25mm scr