Re: Home made CNC rotary table??

Hi Tony,

I'm just hearing about the Vertex tables. I need a 6" (?) rotary table
for my RF-31 mill (yeah, I know, retrofit it to CNC first). So I'm
interested it what is needed to do the Vertex, and where I can find
one. the stepper/driver/controller is no problem! Although as recent
retrofit thoughts have turned to servos, Possibly a servo would be a
choice here also? I suppose one could mix servo's and steppers in a
"system".

Best regards,

Alan KM6VV
P.S. Thanks for the fine work on your website!


Tony Jeffree wrote:

>
> At 04:27 08/05/2002 +0000, you wrote:
> >Hi Jeff,
> >
> >More info, Tony did the Divisionmaster, I believe (see his site).
>
> That is correct - see www.divisionmaster.com
>
> >And I have a Sherline rotary table, which I drive with a CD200 driver
> >module and a "single axis" controller program I wrote. And yes I *DO*
> >Gcodes (sorry Jan!).
> >
> >Alan KM6VV
>
> I have been collaborating with John S over converting Vertex rotary tables
> - I have one of their 4.25" diam tables, John has one of the 6" (see his
> earlier posts). They are designed to take the same mounting for an optional
> set of division plates & indexing arm; whip off the handwheel & there's a
> boss ready pre-tapped for three 5mm screws on a 30mm diam circle (this
> normally takes the division plate mounting screws). John machined up a
> couple of motor mounts that screw on in place of the division plate - add
> an Oldham coupling & a stepper motor, preferably around 200 oz-in (I
> currently have a 120 oz-in motor on my 4.25" table - its OK for doing
> indexing moves, but it would need more power if you planned on cutting
> during a move. John has a 200 oz-in motor on his), and away you go. Not
> terribly hard to do.
>
> Regards,
> Tony