Re: [CAD_CAM_EDM_DRO] How does a polygon turnign lathe work?

I'm only guessing, but I'd bet what you're seeing is an optical illusion.
The video makes it look as though the spindle and tool holder are spinning
at a constant speed, but I'll bet what is actually happening is a lot of
very rapid stopping and starting and coordinated rotation. I imagine the
math behind that is fairly interesting.
--Phil M.

----- Original Message -----
From: "danmauch" <dmauch@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, October 07, 2011 8:44 AM
Subject: [CAD_CAM_EDM_DRO] How does a polygon turnign lathe work?


> I saw thisamzing video http://www.youtube.com/watch?v=KMdBIBzGtKI and
> can't quite figure out how the machine is cutting the hex so perfectly. I
> do see that the cutter is just a staight bit and see that the millhead is
> syncronized via drive shaft to the spindle. But with the cutter on the
> perimeter of the milling head I would think the hex flats would be
> concaved. So how does the machine actually work?
> Dan
>
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