Jibril
Well... it works. :P I say "works", the second stage pinion is slipping quite badly but I think I can fix that the show. I'll be there early to get it sorted and tested in the arena.

Took it to a quiet place and tested it on a sheet of 10mm HDPE. Even at this stage with it not quite tuned in, the Scythe can puncture the sheet so when the pinion gear is lockthreaded and bolted in place... it is going to do something.