Re: [CAD_CAM_EDM_DRO] Re: Swiss turning conversion

In a message dated 4/24/01 4:36:18 PM Hawaiian Standard Time,
dougrasmussen@... writes:

<< One major downside of Swiss type machines is the stock has to have a
high precision diameter. Any looseness in the guide bushing will
show up in the workpiece. Any oversize in the stock and it'll jam
the machine.

Doug >>

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.