Hello All,

I'm working with a student of mine on something called a rolling ball machine. I've included a video of the mark one prototype BUT we want to redesign a lot of the track.

A rolling ball machine in design would be similar to a roller coaster. We're planning on using a sweep to follow a load of 3D spline but the 3d splines seem to take a long  time to get the right shape. Does anyone have any ideas - is there a better way to model the track of a roller coaster or rolling ball machine? Are 3d spines the best way to go???? THANKS - Tim http://www.youtube.com/watch?v=b0lU1zJL1WY