The following pictures show a brass test cutter and the tool steel cutter meshed into the teeth of a cut 20 tooth 48 pitch gear.
Also the basic dimenesions used in later setup. The last picture shows tempering of the gear cutter. Picture color is off some as it's just a nice
dark straw color. Dimensions for the gear came form a spread sheet I created. You can get away with using a end mill of close size to the
tooth radius ( depends on what you want) but I wanted to see what my engraving machine could via multiple profile passes.
RICH

Nice, thanks for sharing Rich!

In reference to the hand written sheet picture, you really should upgrade to electric lighting nowdays as candles aren't really good for your eyes - 

Dave

But then I would need to get rid of the turkeys, all the feathers used for making motations, and wouldn't save on my electric bill. Not to mention the dried bark from the trees which it was noted on.
  RICH

Here is a sample from the spread sheet.

Just a silly answer to a possible question.
RICH

 

and thanks for the spreadsheet, I will probably need it someday 

Thanks,
Dave

   Good job RICH

Brett

A bit off topic but I would love one of those R/C draglines.