RE: [CAD_CAM_EDM_DRO] help for a newbie

Might want to up that wattage a bit, you'll have 12.5 watts to get rid
of, or raise the resistance.

Regards,
JJ

Be Kind, Be Careful, Be Yourself

> -----Original Message-----
> From: Emory Smith [mailto:stratcat@...]
> Sent: Tuesday, August 27, 2002 1:12 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: RE: [CAD_CAM_EDM_DRO] help for a newbie
>
>
> Please don't try to run ANY of the CNC drive from the
> computer's power supply. A good place to start would
> be to get a used AT type power supply to power the
> equipment. They usually run $5 to $15 and have plenty
> of power.
>
> Red=+5
> Yellow=+12
> Black=Ground (common to +5 and +12)
> Cut off and individually tape or heat shrink all unused wires.
>
> These supplies require a load so connect two 1 Ohm/5 Watt
> resistors in series from one of the +5 lines to ground.
>
> Good luck,
> Emory
>
> --
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> -----Original Message-----
> From: ksprayberry428 [mailto:kellys@...]
> Sent: Monday, August 26, 2002 8:47 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] help for a newbie
>
>
> Help!
> I am trying to set up my Gecko g201's on my parallel port , and I'm
> not having much luck, what am I missing? I am only playing with one
> drive for now as I would hate to fry all 3 by doing something stupid,
> which I am fully capable of doing!
> I asked the question about a wall wart last week, and since then I
> have come across an old computer to run turbocnc and to pull my +
> 5vdc singal from.
>
> I have the all the windings in the correct terminals on the g201, I
> don't have anything in the disable terminal 7 at the moment, I am
> just trying to get the motor to move for now. Terminal 8 I have
> connected to pin 2 on the parallel port cable, terminal 9 to pin 3 on
> the parallel port cable, I used a floppy disk drive power connector
> to pull my 5 volts from to terminal 10. I took and tied pins 18-25 to
> the ground of this same power connector (that may be the problem) I
> have a 36k ohm 1/4 watt resistor across terminals 11 and 12. I was
> told to set the amperage for about 2.86 amps. When I turn on the
> power supply I can feel the motor lock up, but thats it. I did feel t
> flinch as the computer booted up. It does have a good bit of holding
> torque. I tried to use the fkeybit, but that does not produce
> anything. I checked the voltage from the case to terminal 10 and have
> about 5.27 volts, I have about .5 volts on terminals 8 and 9.
> I have 8 wire bipolar motors with the windings connected in a series.
> I'm sure this is either something really easy that I have missed or I
> need to be saving my money for another drive!
> Thanks for the help!
>
> Kelly Sprayberry
>
>
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http://groups.yahoo.com/group/jobshophomeshop I consider this as a
sister site to the CCED group, as many of the same members are there,
for OT subjects, that are not allowed on the CCED list.

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