Re: [CAD_CAM_EDM_DRO] Servo drivers

Nic van der Walt wrote:

> Hi
>
> > I have already done this.
>
> Great. A intensive search on Google never brought up any of your stuff.
> I'm glad I found out about it before going of on to much of a tangent.

Hmm, maybe I need to add some keywords like "CNC" to the pages.

> >it already works with EMC, and I can supply
>
> I'll have the BDI downloaded soon, takes days on a dailup connection.
> I'll check it out soon.

Ugh - even a DSL line is awfully slow for an entire CD ROM full of stuff.

> >Linear drives are insane!
>
> I'm semi involved with a company that designs 3000W audio amps. It
> thought
> about simply using their driving stage, it fits in a 19" rack and will
> drive anything up to 100V at 15A on two channels.
> Does have HUGE fans and heatsinks though.

Yes, and you'll need an air conditioner in your shop to keep from roasting.
Maybe you already have one. Note that servo motion systems may have
much higher "energy content" than audio signals.

> > I still sell the blank boards with info for $60.
>
> Sounds cheaper than having boards made here. I'll check whether I can
> get all
> the chips.

These are all pretty common parts, the 4000 series bordering on obsolete.

I'd better mention that the servo amp board kit is not the complete system.
It is only an analog-input velocity servo amp. You still need the encoder
counters and the command DACs, at least. Those are sold complete
(You probably do NOT want to deal with hand-soldering some of these
SSOP chips.)

Jon