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Re: Pushing Power?
Everyone using 4 CIMs in their drive has equal amounts of pushing POWER (assuming similar inefficiencies in their drive)...the better question is what sort of linear pushing FORCE will your robot be able to exert?
Luckily, this is an easy question to answer. Head down to Walmart (go ahead, I'll wait) and purchase a linear force scale, or a bathroom scale in a pinch. Put your robot on carpet (fully weighted with all bumpers to maximize robot normal force, of course) and let her rip against the scale!
Record your results... Check against theoretical.
Voila!
-John
PS - An alternate, significantly less quantitative, but seemingly preferred method involves using your robot to push some fat kid across linoleum floor on his butt. Personally, I like the fish scale. Your mileage may vary.
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In the interest of full disclosure: I work for VEX Robotics a subsidiary of Innovation First International (IFI) Crown Supplier & Proud Supporter of FIRST
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Driving without the trailer was quite fun, but driving with the trailer was just painful. - Paul Copioli [more] 
17-02-2010, 02:29
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