Automatic Clicky Probe for Snapmaker 2.0

This mod for Snapmaker 2.0 3d printers uses a limit switch to physically touch the bed during auto bed leveling, which allows for greater accuracy than the default inductive sensor. Since it measures the surface of the bed instead of the steel sheet inside the bed, this mod also allows you to use non-metallic beds like glass.

The probe is automatically deployed by the movement of the printhead.
I have tested on my Snapmaker 2.0 A350, and it works great. I believe everything should work on other Snapmaker 2.0 printers, but I have not tested it, and some dimensions might need to be adjusted.

IMPORTANT
You must add this line to the start G-code of every print after all homing operations (G28), otherwise the limit switch will break on the bed. This G-code will flip the switch up.
G0 X339 F6000