15-05-2012, 20:54
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Registered User
AKA: Brendan Browne
 FRC #1058 (PVC Pirates) Team Role: Mentor
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Join Date: Feb 2008
Rookie Year: 2003
Location: Londonderry, NH
Posts: 3,102
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Re: pic: 6WD Sheetmetal Chassis
Quote:
Originally Posted by apalrd
For gearboxes, we actually used AM shifters with a final drive chain to a live axle. The gearboxes used 0.090" aluminum plates, and there were four slots in the frame where the gearboxes would bolt, and we could slide the entire gearbox up/down up to 3/4" or so to tension the final drive chain. The encoder was integrated into the AM shifter output. We really liked this design, and would do something similar again. The ability to change the final drive ratio was very nice, we changed it three times during the season.
On sheet metal alloy, we've had no trouble bending 6061 0.050" and 0.063" in our shop on a manual finger brake, but 5052 is easier to bend, especially thicker sheets. Using 6061 allows us to use thinner sheets.
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Sounds like a very nice setup! Do you have any pictures to share? |