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Unread 28-01-2005, 00:21
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Re: pic: Drilled out gears

Hey we drilled holes in our wheels to reduce weight. It wasnt noticable, but it worked, and they were still reliable.
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Unread 28-01-2005, 07:07
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Re: pic: Drilled out gears

FYI, Jon V-Neun consulted with me before his team modified those gears. I did a quick Finite Element Analysis and told him he could take more material off if he wanted too. The two big areas of concern are the area near the hex shaft and the area near the gear teeth.

John,

That is a really cool pattern, by the way.

A comment about Daves Picture:

The main problem in the picture is that there are only two spokes holding the sprocket to the hub. That is an unstable solution. They could have gone with 1/3 the spoke width and added a third spoke and been fine. Notice the failure mode is in the bolt twist direction. A third spoke would have made it much more rigid/stable.



-Paul

Last edited by Paul Copioli : 28-01-2005 at 07:10.
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