A common method of zeroing a CNC machines Z axis using Mach3 is done by using the paper friction test. While this works OK in a pinch, it is very inefficient and not really accurate.

A better way to zero our tool changes would be the use of a touch plate (conductive plate) to automatically feel our tolerances and zero our machine for us.

This video describes how to setup and use a homemade touch plate system together with Mach3 (Newfangled Solutions) by using simple materials and best of all, there is no cost associated with making it.

Link to VB Script:
https://drive.google.com/file/d/0B2hP...

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