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We actually used CD's this year. AOL ones are cheap. We just painted a black non reflective line at 120 degree marks to get 3 (or did they end up with 6?) counts per revolution.
Coupled with the Banner sensors it was a pretty easy set up to do
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Eric Stokely
Team 360 The Revolution, past mentor of 258 The Sea Dawgs
Experience is what you get when you don't get what you want.
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