Re: Motorized wheelchair as parts for CNC?

I have all the componets from a electric wheel chair and have been
thinking of trying to fit to my mill. Just using as is ,should make a
good power table feed. Now if my DRO just had a position output,I'd
be set.

Gary







-- In CAD_CAM_EDM_DRO@yahoogroups.com, "washcomp" <jeff@w...> wrote:

> I wrote a long post this morning that apparently Yahoo ate, so
> here's a short version:
>
> Just an idea:
>
> I think that with a minimum of work, the two servo drives,
> controller, power supply and control mechanisms off of a motorized
> wheelchair can be adapted to the X and Y axis of a CCNC machine.
> The motors are usually NEMA 42 with gear reducers. While the
> joystick connections are a closely guarded secret, they can be
> easily reverse engineered (I did it once about 20 years ago). The
> controllers also have an industry standard interface (basic on-off
> and directional contacts) ending in a DB-9 connector. While the
> chairs are expensive new (think what a new Bridgeport is worth),

I'm

> sure with a little imagination and a few bucks, you may be able to
> end up with an almost complet 2 axis servo system.
>
> Anyone ever try this?
>
> Regards,
> Jeff