3/4 Phase Uni-polar Driver Board

[Hawkeye]

I've scrounged around on the internet for a few hours and decided to ask you guys.
Where can I get a decent priced 3 or 4 phase uni-polar driver board at. I don't care if I have to put it together or if I could just find a decent set of schematics and start from there.

Thanks,
George

[Hawkeye]

Anybody???

[pminmo]

Where in Indiana? What kind of stepper are you looking for a circuit for?

[Hawkeye]

I'm in Indianapolis.
I am looking for a 3 or 4 axis unipolar driver board that won't cost me an arm and a leg. If I could find a good schematic for one I would build it myself.

Thanks For Looking,
George

[balsaman]

www.crankorgan.com

He sells a bare board for a unipolar driver...4 axis.

Eric

[pminmo]

Here is a schematic for a single axis, duplicate 3 or 4 times for your number of channels. The ballast resistor size depends on your motor and power supply.

[pminmo]

Looks like it didn't handle the pdf file I attached, here is a png.

[pminmo]

Ok, png didn't work. hmm... sugestions?

[balsaman]

rename it to a txt extension. Users will have to download it and change the extention back to pdf. Or, just link to the file.

Eric

[ger21]

Change .png to .jpg

Gerry

[pminmo]

http://webpages.charter.net/pminmo/5804schematic.pdf

Everything else hasn't worked. Heres a link to the pdf file of my circuit.

[xairflyer]

Some circuits here

http://www.discovercircuits.com/M/motor-cont.htm