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...
On Wed, 04 Jan 2017 10:39:49 -0500, Randy333
wrote:

Guys,
I got a wanted ad from Machinetools.com and someone is looking
for
a CNC lathe with a taper attachemnt??? This makes no sense to me
at
all. With a CNC control you can progam in any taper you want.

What am I missing? Is there a real use for a taper attachment on a
CNC lathe?

Randy
Remove 333 to reply.
Randy

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I can't imagine why a CNC lathe would have a taper attachment. I
regularly program and then cut tapers that have very small angles.
When checked on the surface plate with .00005" (half a tenth)
resolution indicators there is no discernable stepping or waviness
in
the tapers. When checked with blued gauges there is also no sign of
the taper not being a straight surface. Maybe the person asking
doesn't realize that the taper can just be programmed.
Eric

Perhaps they never learned trigonometry and want the attachment to
compare / measure / duplicate the tapers on existing parts?

-jsw