Quote:
Originally Posted by Navid Shafa
Countersunk holes are easy if you need them. I've made Helical gears too, but its tough to hold great tolerances when it comes to 3D cutting gears. Even the slightest offsets can cause meshing problems. Bevel gears and the like are certainly possible. However I'd still recommend purchasing COTS gears, It's likely to be more cost, time, and labor efficient to do so.
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Quite a few teams have has sucess with waterjetted/lasered gears. The only difference is that with laser you want to stack up multiple plates instead of having a one piece gear. For a few examples, 148 has run gears like this before and 973 has run many gears like this before, such as gears used on their swerve and 2013 arm.
My team is graduating yet another class of great kids who will go into the world capable and focused. And after a decade and a half of FIRST robotics those memories are as treasured as any trophies. - Wayne C. [more] 
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