Thread: Rotating tube rings
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Old 16-12-2005, 10:18 PM
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Roger Davis
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Roger Davis is offline 		 
Join Date: Nov 2004
Location: Sydney
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http://www.parallaxinstruments.com/

Check these out if you want to see how rotating rings should be made. Parallax have been around since 1991 and do it right!

Roger D
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