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View Poll Results: Is shifting necessary?
Absolutely: you must shift to be competitive. 25 24.27%
Shifting would help a great deal in the game. 54 52.43%
Single speed works just fine. 19 18.45%
Building a shifting tranny is NUTS. 5 4.85%
Voters: 103. You may not vote on this poll

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Unread 03-12-2002, 23:20
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Here are a couple of white papers.

Quote:
Originally posted by sanddrag
Those bosch gearboxes are pretty fragile from our experiences. The steel gears look okay durability- wise but we've cracked the plastic housing before. And I don't know about those plastic ring gears. And then there's the whole clutch thing that's just a real pain. Has anyone been successful shifting with the bosch gearboxes? If so, some pics or descriptions please.
Here are a couple of designs used by many teams. When used correctly, the Bosch gearbox can do just fine... just be careful to be fully stationary when shifting gears.

TechnoKats home page

Go to the "Resources" page.

Look at the "Single Motor Gear Switching Assembly" and the "Dual Motor Gear Switching Assembly" white papers.

This single motor assembly (or a derivation of it) has been used by over 50 (maybe 100?) FIRST teams.

Andy B.
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