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Re: ScissorsLift vs. DoubleJointed Arm.
It's a lot harder to build a good scissors lift than an arm. I assume the OP was talking about a device to lift tubes, right? I wouldn't use a scissors lift unless I was picking up something heavy. You could build a pretty light arm for the tubes, although it's tempting to build a heavier one that could right the robot if it tips.
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Exothermic Robotics Club, Venturing Crew 2036
VRC 10A, 10B, 10D, 10Q, 10V, 10X, 10Z, and 575
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