24 Volts from Computer PS

[Jason Marsha]

The following links will provide all the info to link multiple computer power supplies to get more power for your steppers.
I followed the instructions and now I am running 24 volts (actually 22.70 volts) to my steppers on my JCKleinbauer Hawk drill mill. The small steppers that seemed to be weak and stalling at 508mmm/min (20"/min) are now running well at 950-1000mm/min (~40"/min).


Pictures and Instructions
http://www.procooling.com/index.php?...s&disp=52&pg=1

This info is the source of the above procedure
http://www.antennex.com/preview/archive3/powers.htm

Use the How to Modify AT/ATX Power Supply link.
No multiple PS info here just wire management, still important however.
http://www.hobbycnc.com/downloadslin...loadslinks.htm

Good luck!

Jason

[joecnc2006]

I ran my hp steppers (100oz) with three in series and got 32.6v@ 8a with no problems cut at 60ipm on some things but mostly at 40ipm.

[Jason Marsha]

I was too chicken to run my motors which are 2.1v, 1.0A with 3 power supplies. Each common wire of the steppers has a 10ohm 25W resistor attached.

Jason