Quote Originally Posted by curious aardvark View Post
I just like end stops for endstops. Cheap, reliable etc.

But for something like that - you really need to go the optical route, just for bragging rights, if nothing else :-)
This would be a great ideal if the MPCNC was only going to be used for 3D Printing an laser engraving.
Though I wonder if I could keep them clean when carving wood or milling aluminum.