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Unread 16-05-2011, 15:35
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More Torque!
AKA: Andrew Palardy (Most people call me Palardy)
VRC #3333
Team Role: College Student
 
Join Date: Mar 2009
Rookie Year: 2009
Location: Auburn Hills, MI
Posts: 1,347
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Re: Mecanum Einstein this year

Quote:
Originally Posted by JesseK View Post
...he 254/973/1868 drive train in and of itself is an engineering marvel. The fine details of it would be appreciated by most. It's designed up against the edge of constraints in many cases and isn't replicable by most teams (since it probably couldn't be done on a non-CNC mill).
We (33) built a live-axle drive inspired by team 254. We made bearing blocks and cam tensioners out of 1/4" plate and cut them on a waterjet, but the bearing blocks were seriously just three holes in a line and not hard to make by hand. The shafts were lathed by hand (we used keyed shafts since they were easier to machine), and the wheels, hubs, and transmission components all came from Andymark. If you simplify the design, it isn't hard to make.

The Cheesy Poofs transmission, on the other hand, is quite difficult to replicate as basically all of the gears are custom-made by them.

33 robot stats (We were on the top 25, so that qualifies us?)
-8 wheel (6" wheels) live-axle DualDrive combining Plaction, KOP, and Lunacy wheels. Two wheels are actuated by pneumatic pistons, automatically.
-2-speed, 4-CIM transmission (5.5 and 12 ft/sec)
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Last edited by apalrd : 16-05-2011 at 15:41.
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