Re: Servo driver circuits???

Nick,

That's a great question! I too have seen the large number of stepper
motor circuits online, but nearly none for servos...

What I do find is usually something aimed at moving a small motor in
an office machine, like the microchip app note for a pic pid'd into
an 18201 servo setup...

So I'm also asking if anyone has a circuit for a servo drive that
would be suitable for a DIY CNC machine? (Or knows of where such can
be found online...)

Thank you in advance,

Ballendo

P.S. Searches on "servo" are nearly worthless, due to the huge number
of R/C servo circuits, which really don't help...

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Nick Ibbitson"
<pulseweld@d...> wrote:

> Hi all,
>
> sorry if this is stupid question but can you build your own servo
> controllers?, i mean is a there a circuit that can be home built.
> I have a stepper motor system and am more than happy with it but

have been

> given several small-ish servos and it would be a shame not to use

them, they

> have shaft encoders already on them.
>
> Thanks
>
> Nick
>
> ----- Original Message -----
> From: "Fred Smith" <imserv@v...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Sunday, April 11, 2004 11:55 AM
> Subject: [CAD_CAM_EDM_DRO] Re: Servos and Controller boards
>
>
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Trend" <fredit@c...>

wrote:

> > > >In the CNC world we don't hack servo's, we interface to them
> > through a PC
> > > and
> > > > several off-the-shelf (and a few home built) motor controls.
> > >
> > > I guess that was my question, what servos do you'll use, and

what

> > motor
> > > controllers do you'll use? ( something as inexpensive as

possible,

> > but still
> > > 100oz + torque)
> >
> > The DeskCNC Servo Drivers are the least expensive step and

direction

> > servo drivers:
> >
> > http://cadcamcadcam.com/index.asp?PageAction=VIEWPROD&ProdID=11
> >
> > They will drive brushed DC servo motors with encoders. The torque
> > will vary with gear/belt reduction, but with the right motors will
> > easily deliver 100 plus oz-in.
> >
> > Fred Smith - IMService
> > Group and hobby discounts are at:
> > http://www.cadcamcadcam.com/hobby
> >
> >
> >
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