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Unread 02-01-2012, 18:49
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Madison Madison is offline
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FRC #0488 (Xbot)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1999
Location: Seattle, WA
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Re: Simple 2-Speed 6WD for teams with few manufacturing resources

Quote:
Originally Posted by SuperNerd256 View Post
Looks great! Love it!

A few questions:
1) Why 4"x2" wheels? Could 4"x1" work as well?
2) (From a business point of view) Why would you say this chassis is "better" than 1114's KoS?
3) If you were to name 3 distinct features about your chassis, what would they be?

Overall, great design, great features, great everything!
4x1" wheels could work just as well, but I used 4x2" for two reasons:
1. There's been some talk here lately about 4x2" wheels giving a bit more pushing power than 4x1" wheels and I was curious if they could be made to fit easily into a COTS frame
2. The wider wheel actually makes it possible to use COTS spacers for the axles. A narrower wheel would require spacers that are longer than are available from McMaster-Carr. It's trivial to buy longer stock and cut it down, but I like shopping, not machining

I wouldn't say that it's better than 1114's KoS. I've seen only their brief video about the KoS assembly, so I am not even entirely sure of what their recommendation requires. This was just my stab at the idea of an enhance Kitbot.

There are few things about it that are clearly different; it uses a shifting transmission instead of those included in the kit, it uses 4" wheels rather than 6" wheels and the transmission mount and tensioner design suck
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