Re: [CAD_CAM_EDM_DRO] CNC on a lathe

As with most things in the real world, it just isn't critical that the tool
be perfectly oriented for every cut. On a manual lathe you are always
confronted with a cutting operation that requires another tool, but are too
lazy to change and you just cut it with the other tool instead. Boring
tools used to take a facing cut after you finish the hole is an example.

Daniel J. Statman, Statman Designs
www.statmandesigns.com
dan.statman@...

----- Original Message -----
From: "Chris and Dee" <brunoblazer@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, October 23, 2002 4:52 PM
Subject: [CAD_CAM_EDM_DRO] CNC on a lathe


> Another question for everybody. And for this question I need to
> clarify that I'm NOT a machining wiz - in fact I don't even have my
> own lathe yet.
>
> If a lathe is converted to CNC, I thought that it would make
> machining complex tapers and rounds or spheres much easier. But as I
> looked at the current manual devices that cut these shapes - say the
> spherical ends - the cutter rotates with the device. Which seems to
> make sense because then your cutters' angles are always 'correct' in
> respect to the tangency of your cut surface.
>
> For a CNC lathe, how do you go about cutting a spherical end without
> changing tool bits?
>
> If this is a stupid question, I do apologize.
>
> -Chris
>
>
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