Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations

Patrick J wrote:

>
> Loooking at my 20+ years old analouge servo drives they dont look that
> complicated. Its a powerboard with few components and a signalboard with
> more components, but not that many. Wonder why none of the DIY-guys just
> dont copy these. I have all the schematics. Judging from the parts they are soo
> overpriced at $1500 for an exchange unit. Prolly not worth the effort if one
> could get a few of those £250 Chinese analogue drives. If those could be
> turned into a drop-in-replacement to mine...

I made my own servo amps, but they got pretty complicated. I
sure got a great education on the ins and outs of servo drives,
though. You should look at Copley Controls 400-series amps on
eBay. Very small, simple, and easy to hook up.

Jon