Quote:
Originally Posted by hrench
i don't understand why you think two cylinders would be better than one? The lift area (piston in2) will still be determined by the weight of the robot and the total volume will just be the lift area times the lift distance.
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Yes, the force will be the same.
Quote:
Originally Posted by GeeTwo
The time for the power stroke is the biggest problem.
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I'm concerned that they might not be able to get enough air through one of those tiny 1/8" solenoid fittings. Since you cannot legally plumb the output of two solenoid valves together, you need two cylinders to each do half the work.
Actually, thinking it through a bit farther, two 1.5" cylinders with a 36 inch stroke would be even better. You could locate these to the sides of the robot and it would stabilize the rotation of the lift as well.