Hoppy
Cast Iron
- Joined
- Feb 21, 2005
- Location
- Millington, NJ
I have to turn a round bar whose end is parabolic. There is a mathematical formula that defines the X values in terms of the Z values. How can I program this in G code?
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I'm obviously misunderstanding, please feel free to explain better.
A Parabola is a plane that crosses over the Axis of rotation. It is no ALONG the Axis of rotation. So the answer is-you can't "Turn" that feature. The plane is a cross section of a cone. You either get the cone or not. Obviously you could use live tools to do it on a Lathe, but that ain't Turning.
R
Or you could buy a Tera control, which featured parabolic interpolation .... but when you come right down to it, even arcs are "straight line segments" if you subdivide them far enough.The question is how accurate we want the parabola to be. If it must be 100% mathematically accurate, then there is no way other than generating it as a sequence of small line segments.
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