Quote Originally Posted by EddyCurrent View Post
a microphone located near the grinding wheel detected when the wheel had made contact with the metal and stopped it's downward travel. .
thats neat eh ...

i am thinking why not just use a grinding stone on a cnc mill/router ?
i can use a spindle that can run 10000rpm , ive mailed some companies to find out max RPM of their 'cup' grinding stones ... i think ive saved myself some time :D oh and a few pennies :P

obviously you would still need flood coolent , and a decent way of mounting the plates