Atlas gear cutting fixture. By mrpete222.
28:08 video:
https://www.youtube.com/watch?v=uk7HvVyTlDQ
32:07 video:
https://www.youtube.com/watch?v=9ygdp77SOhI
25:41 video:
https://www.youtube.com/watch?v=PvJC09dr3Tc
29:05 video:
https://www.youtube.com/watch?v=ZXdk_MSTp04
