Re: [CAD_CAM_EDM_DRO] Re: PC Control of Motion

True, I keep forgetting that you machinist's do different stuff.

Art

----- Original Message -----
From: <ballendo@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Friday, September 01, 2000 12:01 PM
Subject: [CAD_CAM_EDM_DRO] 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.
>
>
>
>
>
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