Originally Posted by CharlieM My little home built mill, drilling .035 diameter holes in stainless,the drill dulls, starts to scream and then breaks off in the part! Not so easy to get it out. I grab the mouse, search for the pointer, manuver it over to the emergency stop and the drill has already broken. So - - I put a 4 pole switch on the Z axis stepper motor and I can kill the down feed in a fraction of a second. Then I read, NEVER disconnect the motor while the drive is powered up!
Is this the reason I burnt the Z axis driver out on the Xylotec ? |
I bet it is, the docs say to never disconnect a drive with power on.