I used my laser to create the indexing wheels so it was basically free to make mine. I know you have already made your jig, so you don't need this, but this guy has several very clever ways of doing open segments. Might be worth watching a few of his videos. He is older than dirt, and talks slowly, but he makes beautiful things and has some very interesting insights and methods. https://www.youtube.com/@earlssmallsegmentshop5798/featured