Re: [CAD_CAM_EDM_DRO] Auto Tool Changers - EMCO Rotary Table

Hi Bill,

Yes, I haven't even tried to physically see how difficult putting all
this together would be. With the stepper engaged, there would be
considerable holding force. Of course, one could also machine a
ratchet and paw mechanism, and essentially make one similar to ENCO's
(it would also fit better on my Sears/ENCO 5" lathe, instead of the
Sherline!).

Probably just unbolt the Z column, and bring the thing in from the
back. But then the boring wouldn't work, as the tool changer wouldn't
be on the cross slide. but then, if one aligned the work with the Y
axis... that could work!

Obviously I don't have it all figured out! Just thinking out loud,
after reading Tom's post (and seeing Charlie's URL).

http://www.steammachine.com/millturn

It would be a "backwards" running machine! the SPINDLE, work and
TAILSTOCK would be moving in X and Y to make cuts, the rotary table
would rotate to position another tool.

Weird!

Alan KM6VV
P.S. It probably ought to be illegal to do this to a nice little
Sherline mill!

wanliker@... wrote:

>
> > plan is to mount my Sherline rotary table on
> >
> This could be a possibility for some if:
> 1. Center height is not too high, with table flat, or vertical, and tool
> holder adapter on it.
> 2. Some way is found to take up the cutting forces.
> 3. Low silhouette tool holder/plate, holding several tools at known angles.
>
> # 1. could be a problem, mechanically, depending on the machine center
> height.
>
> # 2 is going to be the biggest problem, as the worm gear would have to take
> the cutting forces, from either side, or towards the center depending on
> direction of the cut, unless somehow a holding device is included. Any
> backlash in the table would move the tool position, and would probably cause
> accuracy problems.
> bill