Re: [CAD_CAM_EDM_DRO] DC drives

Brush type DC amps are low in cost compared to brushless. I bought three
Copley Controls 30A DC drives for $425 each. If this is adequate current
you can't beat the price.

Doug

----- Original Message -----
From: <dkmachine@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Sunday, September 17, 2000 12:47 AM
Subject: Re: [CAD_CAM_EDM_DRO] DC drives


>
>
> I'm running into lots of older cnc machines that have
> DC spindle drives. Could anyone comment on a low cost
> replacement (+\- 10 volt analog) drive to replace the missing
> and/or failed drive? (these are serious, 20-50amp drives)
> Seems like the most cost effective solution is to chuck the
> perfectly good DC motor and replace with an AC flux vector
> drive (with less torque)........
> Thanks
>
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