Touch Probe for MPCNC

Hardly original, this is my take on a machinist style probe, similar to
https://www.thingiverse.com/thing:721620 or
https://www.thingiverse.com/thing:1676040 or
https://www.thingiverse.com/thing:2045773 or
https://www.thingiverse.com/thing:31927 or
https://www.thingiverse.com/thing:805139 or
https://www.thingiverse.com/thing:1441156

In action here: https://youtu.be/AzsugI9Bh1Q

What's different?
This incarnation is designed to use #6 sheet metal screws and 1/4 inch rods, which I have handy.

This also uses a printed spring to avoid having to find a suitable one.

This also has a mount designed to fit the standard tool mount for MPCNC.