Re: Re: Yeager CNC-Pro on Lathes?

Well, I use CNCPro on the lathe portion of my 3in1.

I have not used it to cut ball ends ( although I would like to ) because
I cannot imagine how to manually grind the correct shape of cutting tool
to be used, given the need to cut on both edges when so machining.

I plan to either make a ball end fixture or use a CNC rotary table; i
n either case, using a conventional single-edged tool.

But back to your problem, it would appear from your code as if your
toolbit in and out feed ( whether by compound or cross-slide ) is your
Z axis.

Now, I'm no wizard when it comes to interpreting G-code, but it appears
as if your first cut is .125" .. certainly a roughing cut on a small
lathe ( although everyone has a different idea of what constitutes
"small" ).

Your second cut is .062" ( .187-.125 ), also a decent cut on a small
lathe.

Your third cut is .188" ( .375-.187 ), which does not strike me as
being a finish cut on any machine ?

Am I interpreting your code correctly ?

Alan

On 20 May, CAD_CAM_EDM_DRO@yahoogroups.com wrote:

> > >I'm using CNC-Pro on a small lathe.

> > >I use 2 roughing passes and a finish pass.
> > >On the 2 roughing passes everything seems to be OK, but
> > >when it gets to the finish pass, it feeds in tword the chuck
> taking
> > a huge
> > >cut.
> > >G20 G18 G90 G53
> > >M03
> > >G4 P4000
> > >
> > >G0 X.750 Z-.125
> > >G2 I-.234 K-.078 X.563 Z0 F1
> > >
> > >G0 X.750
> > >Z-.187
> > >G2 I-.359 K-.172 X.375 Z0 F1
> > >
> > >
> > >G0 X.750
> > > Z-.375
> > >G2 I-0.374 K0 X0 Z0 F1
> > >
> > >M05

--
Alan Rothenbush | The Spartans do not ask the number of the
Academic Computing Services | enemy, only where they are.
Simon Fraser University |
Burnaby, B.C., Canada | Agix of Sparta