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Unread 26-01-2012, 14:23
Richard Wallace's Avatar
Richard Wallace Richard Wallace is offline
I live for the details.
FRC #3620 (Average Joes)
Team Role: Engineer
 
Join Date: Jan 2003
Rookie Year: 1996
Location: Southwestern Michigan
Posts: 3,647
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Re: Gearbox options for Fisher Price

Quote:
Originally Posted by squirrel View Post
We made one ...

The hex shaft has to be turned to fit into the bearings, alternately if you could find some bearings with 3/8" hex holes in them?

http://www.andymark.com/product-p/am-0439.htm
The one you made looks very nice. I can't see the shims in the picture.

We are making something similar with two FP motors. Our plan is to cut the motor pilot holes using a centering endmill from McMaster (8918A148). I posted the gear picture earlier.

Oh, and we are using AM-0439 bearings, so our shaft only needs a little machining, on the other end of the load mechanism, where the encoder will mount ....
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Richard Wallace

Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003

I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)

Last edited by Richard Wallace : 26-01-2012 at 14:30.