Reading and playing around with my new probe yesterday, can anyone here explain how to find the center of a solid square. Lets just say I have a square and want the tool directly overtop to start my program from the center, not corner. How can this be done with the probe ?

I was able to find the bore center with no problems on that screen in mach, but this X & Y offsets screen I couldn't figure out.


Here's what I tired for the X & Y offset probe screen

I jogged the probe down a bit on side, then hit the -X button it hit then backed off, I jogged up then to the other side, and jogged back down and hit +X, samething for Y. It did nothing besides lighting the leds up... Am I not understanding this correctly ?