RE: [CAD_CAM_EDM_DRO] Wiring A Relay For Master5

There is a simple circuit to do exactly this on my site. Go to
www.KTMarketing.com/CNC.html and then follow the link labeled "Parallel
Port Hookup to Controller". The info you want is all the way to the
bottom. Nice drawing that Jon Elson gave me years ago.

Tim
[Denver, CO]
Sherline at Deep Discount
www.KTMarketing.com/Sherline

> -----Original Message-----
>
> I would like to have a relay send 24vdc to a pull type soleniode
> mounted to my plasma torch handle. (I don't want to modify my torch)
>
> I have built an x y gantry, and a control box with a pair of gecko
> 201's.
>
> Is there an easy way to accomplish this? Can I use a pin from the
> parallel port connected to the relay coil? I see in the schematic
> for master5 the use of an uln2004 IC and 12vdc relay. I have the
> 5vdc from the computer power supply zip-tied to my parallel cable and
> a 24vdc power supply for my motors which I plan to use for the
> selenoid. Do I need to add the 12vdc for relay and chip or can I use
> a 5 volt relay and the power that I took from the computer?
>
> Thanks for the GREAT list... This is so cool that a hobbyist can
> build a computer controled machine.
>
> Kevin Campton
> Scottsdale, AZ
>
>
>
> Addresses:
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