hi, iwas wanting to hook up an edge finder to tell mach 3 were edges are is thier any thing special i have to do to make it work  i have seen a couple video's on u tube but i did not know how to setit up and use it  with mach 3 thanks ben

Zarzul on the forum makes and sells touch probes, have a look here http://www.machsupport.com/forum/index.php/topic,5004.0.html

Hood

thanks ill check them out