Quote:
Originally Posted by kk052
also the brass on titanium is to make the brass take all the wear, so we dont need to replace the titanium
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Why would you want titanium? It's a worse material for gears than steel. The weight savings would be well under a tenth of a pound. The "good stuff", grade 5 titanium, isn't cheap either.
If wear is so bad that it is an issue for an FRC robot, then you'll experience wear on both gears, regardless of material.
You will need grease regardless of the material you make your gears out of. If you run without enough grease, you'll wreck the gears in no time.
TBH, I haven't done the math, but a cantilevered 32 DP brass bevel gear at the output of the transmission, where the torque is the highest doesn't seem like a good idea.
If you're doing this on CNC anyway, I would get rid of the green thing and try something like the vex pro versakey pattern, or something that's similar to the dog clutches used in FRC gearboxes.