I built this touch probe tool to use it with my MPCNC.
I made it with my 3D Printer to be as small as possible.
It consists of an upper part that is fixed to the CNC spindle:
On which there is a spring that pushes the probe downwards:
In order to reduce the overall dimensions and to be sure that all the contacts are correctly positioned, there are only three contacts inside:
For this reason the body and the probe are connected to the same cable:
The contacts are made with a copper rod:
The system consists of a few pieces:
I designed the system with the CAD SolidWorks:
Before creating this final probe I had made another attempt with a six contacts system, but it didn’t always work properly. Instead, with only three contacts the circuit is always properly closed.
