RE: [CAD_CAM_EDM_DRO] Relay controlled by parallel

Tim,
Just got around to doing this - did it exactly like you had on
your site; no luck. I'm using KellyCAM - and everything else is working
great but this won't do anything. Power was going to it and everything,
it just want engage the relay.
Any thoughts?
-Chris Clough
Xtech Engineering

-----Original Message-----
From: Tim Goldstein [mailto:timg@...]
Sent: Monday, November 19, 2001 9:34 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: RE: [CAD_CAM_EDM_DRO] Relay controlled by parallel

Also remember that many (most?) parallel ports don't have enough current
to
drive a relay (solid state or standard) directly. You may need to put in
a
transistor to do the trick and drive the relay from the transistor
output.
In have some info on this at http://www.ktmarketing.com/CNC.html then
pick
the 5th link from the top titled "Parallel Port Hookup to Controller".
It is
on the bottom of that page.

Tim
[Denver, CO]

> -----Original Message-----
>
>
>
>    From: cclough@...
>
> Hi all,
> Thanks a million for all your info... have yet another question. How
> hard would it be to control a relay from the parallel port; using a G-
> code command. I am trying to use a plasma torch; and upon sending the
> signal to the relay, it'll turn the plasma on.
> Any thoughts?
>
>
> Chris
>
> Several EMC users have grabbed one of the coolant commands (m7, m8,

m9)

> and have used them to turn on other stuff. You could also use
> the spindle
> command. You would need a second parport if you use steppers for axis
> motion.
>
> HTH
>
> RayH
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/

Addresses:
FAQ: http://www.ktmarketing.com/faq.html
FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/

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