To all of the teams out there especially the new ones and ones that don't have access to CNC equipment or to precision milling equipment. Your propblem can be answered with this resource, and some money....
www.dcwaterjet.com
These guys take a 2D cad file and the material you send them, set it on a waterjet cutting table with accuracy of at least .005" and cut your parts out and ship them back in incredible time all for a fair price. For fair I mean it is probably less than machining time. Battlebots have started using them like crazy partly because the waterject easily cuts materials like titanium and steel. I like them because they can cut very accurate parts very quickly and get them back to you.
So this year, if you want a gearbox but you are not confident in your machining use this resource