Round to square connector

thingiverse

This connector links a square-ended tube to a round one, utilizing superellipses. The script leverages the fact that this curve family encompasses squares and circles for smooth morphing between them. The derivation is in my blog; however, high layer numbers raise generation time. Printing remains unproven. http://kitwallace.posterous.com/piet-hein-and-the-superegg; http://en.wikipedia.org/wiki/Superellipse