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Unread 20-12-2010, 11:41
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Dick Linn Dick Linn is offline
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Re: 507 Mechanical Movements

If you really have time to burn, check out this video, then read the 21 page thread here by the inventor that explains how the Newbould Indexer came to be. It's the 28th Basic Mechanism ever invented, and involves gears with a non-integer number of teeth to directly set an angle in degrees, minutes and seconds.

http://www.practicalmachinist.com/vb...ention-159279/

Animated model in the Smithsonian: http://www.newbould.com/PM/indexer.MPG

EDIT: Do have a look see at the models here: http://kmoddl.library.cornell.edu/model.php
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Richard Linn

Proud father of Marine LCpl. Karl R. Linn
Co-founder Team 975
KIA, Iraq 1/26/2005

Last edited by Dick Linn : 20-12-2010 at 11:56.