CNC Touch Probe

I started following Andy Pugh's touch probe build:
https://www.youtube.com/watch?v=2ia1_NKQJKs
https://www.youtube.com/watch?v=yOvBcecJ3Fg

His build features a simple two non-conductive piece design using angled pins instead of balls to form the kinematic mount.

I modified his design with an adjustable center and I used a pcb resting on the dowel pins instead of directly soldering to the pins.

I had some 5mm pins available so I modified his design to work with these. I turned the center piece from delrin on the lathe. I added a groove and four screws to the center hub for adjusting the center. This adjustment works by flexing the delrin. Be very careful if you use this adjustment mechanism with a 3d print.

I often 3d print designs to help me visualize the setups so I printed the probe outer hub to serve as a drilling setup guide. The print turned out so nice, I ended up using the print directly and it seems to work pretty darn well. (I quickly dialed it in to a few tenths