Looking for motors

[tintruder]

I have an Aerotech Unidxe U-12 4-axis CNC Control. Basically an older version of this: http://www.aerotech.com/products/controllers/u511.html

It has 3 DC Servo (brush style) axes and a stepper axis.

The problem I am having is that the DC Brush controllers run at 130VDC and I have no idea where to find DC servos of beer-can size (for use on a hobbyist CNC lathe or mill like NEMA23 or 34 size) that run at such a high voltage.

There does not seem to be any easy way to lower the voltage on the drives either.

I hate to spend...well, I WON'T spend $500 each for motors from Aerotech. Just need an alternative.

Any ideas?

If not, anybody want to make an offer on the controller? I'd be happy with enough to cover a pair of Rutex 2030 drives to use instead.

Tom

[Al_The_Man]

You may find by checking that the controllers have a max of 130vdc, alot of this type of DC servo PWM drives are pretty tolererant of Buss voltage.
Especially if the power supply is separate entity, then the conversion should be easy. Just fit a new or modify the old power supply.
Al.