I've been looking for probing software for a while for my Mach3 setup. Couldn't find what I wanted so I set about writing my own. For those interested, here's a link to my project diary with a download http://www.razordance.co.uk/probe25D.htm and to my Mach3 thread. http://www.machsupport.com/forum/index.php/topic,4352.0.html

Thanks