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 The fact is, if people dont know about nature they do nothing to preserve it...nature is something to be valued and not feared or destroyed. - Wayne C. [more] |
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| The fact is, if people dont know about nature they do nothing to preserve it...nature is something to be valued and not feared or destroyed. - Wayne C. [more] |
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#8
21-04-2007, 01:06
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Re: Engineering Failure Analysis
1726 used dewalt transmissions last year, and had some failures where the pinion gear is attatched to the motor shaft. The pinion gear is a sintered gear, and is bored out to fit on the shaft. There just is not enough material left in the gear to be reliable.
solution: AM shifters this year, no problems at all. Sorry to sound like a broken record, but I see no reason to use aluminum hubs and shafts in the drive system....weight down there keeps the robot from falling over, and steel is more appropriate for any keyed shafts and hubs. Aluminum would probably be acceptable if it is a hex shaft. |
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