Re: [CAD_CAM_EDM_DRO] Software Question

Tom:

Good idea. Thanks, I think I'll add this to Mach2. It already has this
capability for the MaxCL's to stop
movement when a quadrature wait pulse is active, so it may be applicable to
do EDM that way. I suspect its
not the optimal way to do EDM, but if waiting output on the threshold
voltage will do as a 'poor mans' EDM
I'll add the capability just in case..

Thanks,
Art
www.artofcnc.ca

----- Original Message -----
From: "TomP" <tomp_tag@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, February 03, 2005 5:42 AM
Subject: Re: [CAD_CAM_EDM_DRO] Software Question


>
> John
> You're going to get a lot of advice that ignore that you want to 'do EDM'.
> Bottom line, almost all will no 'do' edm.
> You could try the software form MicroKinetics for stepper.
> They said ( many years ago) thier system has been used for EDM, and the
> trick was to issue a single motion pulse, then to
> wait for threshold voltage before issuing another ( wait and see EDM ).
> They dont sell this circuit but they may be able to supply the print,
> should be a voltage divider to reduce the gap voltage, a comparator,
> and a oneshot 555, maybe 5 buck worth of parts.
> Likely could be applied to other stepper systems.
> But for off the shelf DOS cheap systems known to work with EDM
> thats the only one I know of.
> High end systems exist but figger 10k$ to get the control ( less machine,
> less power supply, oscillator, antiarc, oils system etc)
> tomp_tag
>