I'm working on a shoe model, but I'm having a problem with the laces; at all the corners I'm getting holes. I can't seem to eliminate them however I twist the spline handles. I've tried a rectangle, circle & an N-sided for the sweep, to no avail. Any advice very much appreciated! I can provide more details if useful. I've attached a pic of the problem to this post.
depends on the spline and the settings in the sweep. it looks like your spline might be coming in to a point at each turn around which would be a problem, you will have to go 'around' like real laces do.