Having to resort to hand filing is what took me so long to decide on this option and they are not quite done. Also a close up would show they are a bit rough. So much so I'm thinking of redoing it. I placed the ring gear on the plate and used a marker to outline the teeth then cut them out. I think I need to measure and mark each tooth and then drill each point so it is more uniform. There will still be sme hand filing but the end result will be a lot better.
