Thread: Dewalt Shifting
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Unread 12-08-2008, 18:44
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FRC #1718 (The Fighting Pi)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 1999
Location: Armada, Michigan
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Dewalt Shifting

Team 1718 just finished their first prototype of a "Dewalt" style transmission with a cim running into it.

We currently don't have a servo hooked up to it.

It is difficult to shift between gears one and two by hand - so much so that I doubt a servo could do it.

In addition, when we shift into "third" gear, the transmission freewheels. I haven't torn it apart and figured out why - I'm assuming the freewheeling is expected since we removed the last ring gear to mount the cim per the NBD whitepaper, however I am concerned over how stiff the shifting is.

Is this normal, or are there tricks to making it shift easily that aren't in the whitepaper? Or did we do something wrong....