And this is all the work I'm going to do today. The brass has been sized to fit into the groove in the top of the rotor and glued in there with J.B. Weld. Tomorrow I will see whether or not the J.B. Weld is going to stick to the rotor.
Yes. Roy has retired to some extent, and now it is being carried on by a new fellow. Nice guy. He knows the ignition systems.S/S had what you ar3e looking for but he has retired. Apparently someone else has taken over the business
https://www.cncengines.com/index.html
I have been using TPU. Somewhat flexible but still pretty rigid. The ones that I have made do work.You can buy more flexible filement but would have to find a use for the other 99% of the drum