These are 3D files for Cherry MX switches with square hole for LED, PCB mount:
https://github.com/Supermagnum/kicad-packages3D/blob/master/Button_Switch_THT.3dshapes/SW_Cherry_MX_1.00u_PCB.step

https://github.com/Supermagnum/kicad-packages3D/blob/master/Button_Switch_THT.3dshapes/SW_Cherry_MX_1.00u_PCB.wrl

source :
https://github.com/Supermagnum/kicad-packages3D-source/blob/master/Button_Switch_THT.3dshapes/MX-PCB.FCStd

Blueprints for Mathias switches:
https://matias.ca/switches/click/blueprints/