Thanks, Tim, that works a treat.
A.D.B.
"Tim Attwood" <tim### [at] comcast net> wrote:
> The problem is too many control points in a small space.
> This is similar to other floating point accuracy issues, because
> of floating point errors some of the points in your lathe are
> doubling back, or coincident. A work-around is to scale up your
> lathe's control points, then scale down the lathe to the desired size.
> ....
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