I'm working on a bobsled roller coaster in No Limits 2 and I have a 3d spline that follows the track. I'm using blender to make the half cylinder that replaces the existing track to make it look like it is a real bobsled. I am having trouble making the track that follows the spline. This is what I have so far. 
When I try bevel the semicircle along the path, I get failed set value. I've also looked at the post about extruding along path and that hasn't worked for me.
