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Here at S.P.A.M. we machine parts to assemble our own gear clusters. We have to as the great Gary Jones (chief designer of all our gearboxes and from what've been told instrumental in several Pratt & Whitney Engine designs) who contsantly generates a new gearbox type and then condenses it so its smaller than the year before and lighter (which helps with a 130 pound robot weight limit...not to mention shrinking weight budgets for certain components). You just might want to order the gears and manufacture the clusters yourself (if you haven't ordered them yet). It might be cheaper...oh and shear pins stink in regards to gearboxes....especially due to the various loads/forces that are put upon the shafts and gears themselves. That's why Gary, James, and I spent the first six hours (unfortunately I guess right on the time it would take to fix the gearbox....thank you my friends for being so understanding) of the 2002 Championship, from 7:00am-1:00pm, fixing it....and then we had to repair the gearbox (well one) between division and the championship finals. Shear pins as their name implies...shear. I believe this years design call for screws.
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