> [The stitcher determines] how much the belt with the parts on it has moved since the previoue frame (that’s the function of that wavy line in the videos in pa

> [The stitcher determines] how much the belt with the parts on it has moved since the previoue frame (that’s the function of that wavy line in the videos in part 1, that wavy line helps to keep track of the belt position even when there are no parts on the belt) I'm curious about this wavy line--does it need to be specially encoded in any way or did you just squiggle the belt with a marker and let the software figure out how it lines up?