CAD CAM EDM DRO - Yahoo Group Archive

Re: turntable

Posted by ballendo
on 2004-03-23 09:27:15 UTC
Hello,

Notice the cutout area near the "flat" part of the back side of the
turntable? (It has a couple of small threaded holes around it)

Turn the table and watch the gear through this "window" area...

At one point you will see two raised rivet heads come into view.
These are the actuators for the switches that originally were mounted
in the window area, and for which the threaded holes exist. A submini
roller lever switch fits perfectly. You have to arrange a mount for
it. I've done it, but can't share the details, so you're on your own
there...

But this is how you get a home switch(or 2) with that unit.

Hope this helps,

Ballendo

P.S. The encoder is really a tach, and will only serve for feedback
to a speed control circuit. It has no direction capability.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Trend" <fredit@c...> wrote:
> alright, I just took off the brake and encoder. How would you'll
tell if the
> thing is at home or 180 degrees? Just 2 magnetic switches ? I am
just scared
> it might go past one as the motor is slowing down, and then have to
make
> another trip around
> the motor is 25rpm.. but the turntable is ~5rpm
>
> thanks-Lee
>
>
>
> ----- Original Message -----
> From: "rrc62_03782" <rrc62@a...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Monday, March 22, 2004 6:08 PM
> Subject: [CAD_CAM_EDM_DRO] Re: turntable
>
>
> > I've used these for aerial camera mounts. You have to remove the
brake
> and encoder
> > then add a much better encoder that will work with your servo
system.
> >
> > Ross
> >
> >
> >
> >
> > > Hello, just purchased a turntable for my cnc.. And I already
have a 2x
> 12v
> > > output power supply. but this turntable table:
> > >
> http://www.allelectronics.com/cgi-bin/category.cgi?
category=search&item=DCM-
> > 178&type=store
> > >
> > > requires 24v to unlock the brake, and 12v to move the gear
head.. what
> would
> > > you'll suggest doing to power this? (I am not not versed in
power
> supplies..
> > > as far as building one, so any inexpensive solutions?)
> > >
> > > thanks-Lee
> >
> >
> >
> > Addresses:
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Discussion Thread

Trend 2004-03-22 13:52:41 UTC turntable rrc62_03782 2004-03-22 15:09:34 UTC Re: turntable Andy Wander 2004-03-22 16:55:10 UTC RE: [CAD_CAM_EDM_DRO] turntable Trend 2004-03-22 19:27:23 UTC Re: [CAD_CAM_EDM_DRO] turntable Trend 2004-03-22 22:58:34 UTC Re: [CAD_CAM_EDM_DRO] Re: turntable rrc62_03782 2004-03-23 05:52:31 UTC Re: turntable ballendo 2004-03-23 09:27:15 UTC Re: turntable