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Re: pic: Three Trackballs?
I always figured it was to prevent manipulators and/or robots from "trying" to go through the center divider, that is the drive base goes under the lowest section of horizontal pipe and your manipulator gets demolished as your entire robot attempts to take a "short cut." It also presents a "solid" object on the "left" to bounce ultrasonic range finders off of.
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Dave Button
Physics and Mathematics Teacher
Wakefield School
The Plains, VA
“Simplify and add lightness.”
― Colin Chapman, Team Lotus
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