Re: Swiss turning conversion

Peter,

Generally, Swiss-type's have their stock centerless ground. Or, they
live with the looseness in the bushing. You can run with loose
stock, you just lose potential precision in the parts.

A few years ago I was talking with the manager of a fairly large
manufacturing company. He authorized purchase of a $200K Swiss CNC
with all the bells and whistles. OOPS...no one told them that they'd
need ground stock. Their next purchase was a centerless grinder...

Doug

--- In CAD_CAM_EDM_DRO@y..., ptengin@a... wrote:
>
> Doug,
>
> I often buy cheap 1/2" diameter 6061-T6 bar stock. Sometimes the
stock is
> .01" out of round. Of course this is extruded stock. The precion
OD'd stuff
> is very expensive. I wonder if you could put a OD turning tool just
ahead of
> the bushing to true up the bar. Is this done on a comemrcial basis?
I suppose
> most would opt for the correct matrial to cut down on headaches....
Just
> thinking of building a bushing assembly that bolts onto the saddle
of a
> regular lathe to "convert" it to Swiss style turning if not a Swiss
style
> lathe.
>
> Peter
> THRD, Inc.