This works very well, I have one on my Arty CNC.
One trick to watch out for is if you are using a very small bit or small tip, slow the speed down in Mach3 until the bit has zeroed or you can damage the tip. I found out the hard way.
One trick to watch out for is if you are using a very small bit or small tip, slow the speed down in Mach3 until the bit has zeroed or you can damage the tip. I found out the hard way.