Quote:
Originally Posted by aerohead
.... Someone with a calculus background could probably help write the equation for the curvature.
'Apology for the rough graphic of the template.At larger scale,a french curve could be used for curve smoothing to take the 'bumps' out.....

I think that the curve could be curve could be duplicated by developing a polynomial curve fit.
It would take a little doing upfront to 'prepare' the data by developing a curve that has a gradually increasing radius, and build a data set for generating the polynomial coefficients.
Maybe someone with fresh calculus background can do it faster, but I'm reasonably sure it can be done by other means as well.
Jim.