Cam Spline 1.0.0
Please note: This script was written and uploaded here before the release of 3dsMax 2013, which now includes an 'egg' spline shape.
What it does:
Cam Spline is an interactive, parametric spline tool which produces spline shapes based on two circles joined by two straight or curved lines, or a 'cam' shape. Cam Spline faithfully keeps the intersections at a true tangent, regardless of the diameter of the circles or the distance between them.
How to use:
The basics are really simple: