Centrifugal collet was Re: Dynamoyion circuit driller/router

Hi Jon,

Guess the mass of the granite would make a great base.

here is the url to the photo.

http://photos.groups.yahoo.com/group/cad_cam_edm_dro/vwp?.dir=/Daves+U
nit&.src=gr&.dnm=surface+plate.jpg&.view=t&.done=http%
3a//photos.groups.yahoo.com/group/cad_cam_edm_dro/lst%3f%
26.dir=/Daves%2bUnit%26.src=gr%26.view=t

yikes that is a loooooong path.

From the web page, it is

Photos - > daves unit -> surface
the last picture in the daves unit folder.

Dave

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:
>
>
> turbulatordude wrote:
>
> >I'm thinking "granite table'
> >
> The base of the Excellon machine I got the drill motors and axis
drives
> from was supposed to
> weigh 8000 Lbs, and the legs were 3000 Lbs each! (That's from
memory,
> it may have been
> more!) The table, as I recall, was 5' x 5' and about 8" thick.
>
> >
> >great base for a router and the surface plates are relativly
cheap.
> >Just drill or epoxy your rails and presto !
> >
> >
> Yup, that is basically how the first axis of the Excellon was made.
> They glued a granite beam
> about 3" x 8" directly on the table. Then, there was a 'spider'
made of
> aluminum, about
> 18" square, with a set of air bearing slider plates on the bottom,
and
> another set, at 90 degrees
> (exactly, to about .1 arc second) on top. The second axis then
rode on
> the spider, and was slid
> around by the first axis.
>
> >I put a copy of one in the photos section. I'm thinking heavy
duty !
> >daves stuff - surface
> > (I'm the guy in the striped shirt.)
> >
> >wadda think ? 6x 8 would be a MEAN table !
> >
> >
> I couldn't find the picture.
>
> Jon