Re: Is this a silly idea

Hello,

Like a record player...

There's a really great website of this type of machine on the net. I
listed the url here a couple of years ago. (Sorry, but I don't have
it now, it's in the archive<G>)

BTW, it DID have software...

Hope this helps,

Ballendo

P.S. One gotcha with this type of machine is the speed of rotation
necessary for decent "linear speeds", and the variability of "step
size" as you move out the radius of the rotary...

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Chris Cain"
<chris.cain@d...> wrote:

> I am thinking of building a small CNC mill and looking at X-Y tables
> construction is difficult and good ones are expensive.
> One though I had was that rather than have an X-Y table as the base

of

> the mill what about a X - theta table.
> i.e. a rotary table on a cross slide, no Y movement at all.
>
> As far as I can see this would be a lot simpler to make as small

rotary

> tables can be purchased relatively cheaply.
> With CNC control it should be possible to duplicate any cutting move
> that could be done on an X-Y table as well
> As a number that would be difficult to do on a straight X-Y table.
>
> About the only down side I can see is that I would probably have to
> write the software myself to control it ?
>
>
>
> Chris Cain
>
>
>
>
>
> [Non-text portions of this message have been removed]