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Unread 13-12-2011, 23:38
Wayne TenBrink's Avatar
Wayne TenBrink Wayne TenBrink is offline
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FRC #1918 (NC Gears)
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Re: Custom Vs. COTS Transmissions

I re-re-read the 2011 rules, and I concur that FIRST has approved the re-use of a publicly-posted design. That is certainly a good incentive to develop our own designs, and provides another resource for teams looking for new technical solutions.

PS - I have spent a lot of time over the past couple of weeks trying to design a gearbox. The experience has given me a deeper appreciation for the AM super shifter. The more you study it, the more you realize the elegance of the design.

Related comment and questions: All the gears in the super shifter transmit power to their respective shafts via a hex shaft (directly or indirectly via the shift dog) with the exception of the pinion on the intermediate shaft, which drives the larger gear on the final output shaft. It uses a square key. Has anybody had a problem with that key? One of the designs I am considering would require a square key on the input gear (that meshes with the pinions on the CIMs). Do you think that would work, or would it get loose over time/reversal of direction?
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FRC 1918 (Competing at St. Joseph and West MI in 2017)
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