I’ve been making the bead roller I posted drawings for at TAFE the last couple of weeks. I modified the design a little bit as I went so I need to update the drawings. The sizes of the shafts are all larger and I changed the two outer rollers to be held by shafts that are retained with a keeper plate as opposed to unbrako shoulder screws. The two main threads are larger, too, now- M12. I’ll update the drawings and repost later.