Re: PC Control of Motion

What about thread milling? Or T-slot cutting? Or back facing with a
boring head?

Remember, the E in estop stands for emergency. I believe the best
approach is to(in this order)1.Hardwire stop the spindle. 2.FREEZE
the drives/and or motors.(see previous post about braking) 3.Kill the
processing(if any)between the computer and the CNC.(i.e. Let the
computer know: Houston. We have a problem.)

Ballendo

>Art wrote:
>I agree, It seems the best thing to do in an emergency would be to
>lift the
>Z-Axis by a couple of mm's then kill the spindle. I can't think of
>an emerg. which would be made worse by lifting the spindle.

>Dave wrote:
>Another scenario here might be when the disconnect relays drop power
>to the servos that the z switchs to a hardwire mode to retract the
>spindle/knee and get the cutter clear.