Connecting multiple ATX supplies

[chola]

G'day,

I know I've seen info / step by step on this somewhere, but cannot find it again.

I need some info on the connection of 2 ATX supplies (in series?) to drive stepper motors.

Is this a practical way to go (ie: seems pretty cost effective compared to the prices wanted for a dedicated power supply).

Basically I need to get about 30 to 35 VDC, is this the best way to go?

Thanks.

[gandalf1]

I think this is what you might be looking for,
http://www.procooling.com/index
With great difficulty I got the article printed out and saved as a Word document and will try joining a couple of supplies in series to get 24 volts, 3 for 36 would be better but getting a bit too close to my 40 volt max for the motor controllers.
John (UK)

[chola]

Hi John,

Thanks for that, not the one I was thinking of but an excellent 'tutorial' (better than the one I was thinking of acutally!).

Let me know how you get on with the surgery, very keen to know. I think 2 supplies may suit me for the time being, though 3 would certainly beef up the performance of the steppers somewhat..

Thanks again.