Re: [CAD_CAM_EDM_DRO] Milling Machine info needed

This is getting to be a lot more complicated than I
thought, But I will still make it work and I am having
fun. The stepper motor wire colors are: 1-red, 2-wht,
3-wht-red stripe, 4-wht-grn stripe, 5-grn, 6-blk,
7-org, 8-wht-blk stripe. Hope this helps. Now needing
to find out how the wires are so I can wire them
properly positive and negitive, etc. Will the Gecko
drivers handle the big motors, what do I use to drive
the other motors and air actuators? I still am not
able to find the amperage or voltage, from what I
researched they look like NEMA 42 motors. I am going
to try to get a site to put my photos on. Is there a
good site or book I can get to learn more about this,
I feel like I am asking stupid questions. I also have
a Bridgeport mill I want to setup after this mill as
well as my Birmingham lathe.
Thanks a million,
Ron

--- Jon Elson <elson@...> wrote:

>
>
> R Petersen wrote:
>
> >Jon,
> > The stepper motors control the bed in/out,
> >left/right, up/down, spindle speed, spindle
> up/down.
> >The motors measure 7 1/4" long, 4 1/8 dia.,
> >
> OK, those are known as NEMA size 42 motors.
>
> > 8 wires
> >hooking up in the back in a "U" shape configuration
> >numbered from left, 71562438. Back cover is flat.
> >Color is blue/grey.
> >
> The blue/grey is the central cylindrical section,
> with bare aluminum
> end covers? That VERY strongly suggests Superior
> Electric motors.
> Those should be fairly easy to figure out the specs
> for.
>
> > No nameplate at all nor sticker.
> >The machine nameplate is Autonumerics Inc, Positool
> >Model# S-2. I'll be getting photos of the machine
> and
> >motors today. BTW, what's VFD?
> >
> Variable Frequency Drive. It takes in single- or
> 3-phase power, converts to
> DC, and then generates a synthetic 3-phase output of
> varying voltage and
> frequency. You can run standard motors from about
> 20-30% of rated
> speed up to 150% or more if you dare. If you have a
> belt drive with step
> pulleys, you can often leave the belt in one place
> and dial the speed up
> and down
> with the VFD for most purposes. I'm guessing you
> have a belt-type
> variable speed drive, with the stepper driving the
> belt up and down.
> EMC doesn't directly support this, but it would be
> pretty easy to
> throw together some external circuits to pulse a
> stepper driver from
> the speed-up/speed-down signals that EMC does
> provide.
>
> Jon
>
>
>
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