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Re: pic: 1251 Prototype v 1.2
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Originally Posted by tkwetzel
Well...I finally made it back to Chief Delphi after being away for so long.
The sprocket size should not matter at all to answer their question. They asked how fast the wheels were spinning, not the motors. With an angle and distance you need the size of the wheels and possibly height of the arc of travel to find the rpm of the wheels to launch one of the foam balls that far.
Without calculations I will guess that the wheels are spinning at 1,900 rpm.
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You couldnt find out the rotational speed from just projectile distance, becausethis would require the assumption that 100% of the wheels energy is translated into the ball (a horrible assumption).
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When you start thinking of FIRST as a robotic building contest you have left the pavement and you are in deep weeds. - KenWittlief [more] 
14-01-2006, 23:25
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