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Unread 24-12-2012, 00:50
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Garret Garret is offline
Standing on the Shoulders of Giants
AKA: Garret Smalley
FRC #0691 (Hart District Robotics)
Team Role: Mentor
 
Join Date: Dec 2009
Rookie Year: 2008
Location: Goleta, CA (UCSB)
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Re: pic: Another Team 691 Swerve Module

Quote:
Originally Posted by Chris is me View Post
Any reason you can't run 3/8ths and use the COTS Colson hub? I'd be wary of using the super thin roller bearings in a drivetrain application.
Sorry for not responding earlier, there isn't any reason that prevents me from doing that, it would simply require the hole to be drilled out and the shaft replaced with a 3/8" bolt.

I hadn't done something like that initially because I was testing out the feasibility (from a design point of view) of having the module hold itself together as if it were one single piece. In this case the axle was actually a tube that fit into counter-bores on the two side plates, the intent was to make the shaft a structural member. This was done with the rest of the module by having the parts fit into slots or holes that would hold their positions instead of fasteners.

For this module only the 2 larger bolts going through the top are necessary to hold the module together and the other large bolt on the bottom just helps "strengthen" the shaft if the game required it (bumps, falling, etc...).
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