This upgrade kit provide homing switch mounting on Z axis for Alfawise C10 CNC.
You have to put the switch in the place on top left and the wire can go out through the hole at bottom of it.
The model was made by reverse engeneering the original part with openscad. I added mounting room for the switch but also 2 things : reinforcement for the tool tightening screw and room to add metallic washer if you want.
Once printed you'll need 2.5x15 bolt+screws (I used 2.5x20 on the pictures) to fix the switch.
Every SCAD uses variables so you can tweak it.