Re: newto cnc - - - - - - - advice on servo motors please.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "mcculley_neil"
<Neil.mc@d...> wrote:

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Lee Studley"
> <indigo_red@q...> wrote:
> > I think I have a set of th emotors you are talking about( On
> Ebay?).
> > They look like a "cross" ?. If so, they are decent motors and

would

> > work for a small bench type knee mill with a 1:2 or 1:4 pulley
> ratio.
> > I dont have the exact specs on them, but currently I been tested

a

> > G340 with one.
> > -Lee
> >
> Yes Lee they are on ebay. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?
> ViewItem&item=3825869369&ssPageName=STRK:MEWA:IT. They are in a
> cross shape. They will be for eithe a benchmill or small standing
> mill. Table size probably 20" x 8" max. Will be milling copper and
> aluminum mostly. Would these do, and is $65 each a fair price?
>
> Thanks,
> Neil

Neil: I looked at the photo and there is no evidence of external
brushes. They may well have internal brushes that require
disassembling the motor to replace a brush, but being new they won't
need that for a long time. I can't see the number of wires coming
out to tell if they might be brushless DC motors. If they are you
will have a harder time finding cheap drives to use them with.

*If* they are brushed (often brushless go cheaper because most hobby
guys don't want them) then at 65 they are a pretty good deal.

I have seen these several times before so the seller must have a
quantity. Seems like the seller would offer more information if they
were desirable motors.