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Unread 13-05-2016, 14:50
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nuclearnerd nuclearnerd is offline
Speaking for myself, not my team
AKA: Brendan Simons
FRC #5406 (Celt-X)
Team Role: Engineer
 
Join Date: Jan 2014
Rookie Year: 2014
Location: Hamilton, Ontario, Canada
Posts: 457
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Re: What COTS parts would you like to see?

Some of these are (unmet) repeats from my 2015 wishlist:
  1. seconding a larger versa planetary. A stronger output stage (with more than two extremely thin #10 mounting holes), longer output shaft (on two bearings maybe, steel ring gears, aluminum encoder stages, and would actually installing the anti-torque pins at the factory would help. We went through hundreds of dollars of busted stages this year For larger arms, teams shouldn't have to build their own chain stage - a strong final stage could work as a direct drive!
  2. A system of hubs and bearings for 1" OD tube axles. 1/2" 7075 hex is not up to the challenge of transmitting large torque, over long distances with little twist. 1" tube would fit in AndyMark and Vex bolt circles, and be a lot stiffer
  3. Repeated from up-thread: A pneumatic brake and/or ratchet stage for a versa planetary. This could be small and lightweight to go on the motor side for mechanism holding, or beefy to go on the output side for something like a catapult release
  4. A clutch stage for a planetary output (or maybe just something that slips on a hex shaft. This would let teams use air-cooled motors like the 775 pro without worrying about stalling and burning them out
  5. Something like Vex's 217-4183 bearing mount, but longer, with set distances between holes to fit standard belt-pulley / chain-sprocket spacings. Teams that don't have machining resources have a heck of a time mounting pulleys at the proper center spacing
  6. Longer ribbon cable for talon SRX's, and/or cheaper breakouts

I'll probably come up with more...
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