December 2001
Intermediate to advanced
448 pages
18h 49m
English
Content preview from Building Robots With Lego Mindstorms
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194 Chapter 10 • Getting Pumped: Pneumatics
bands.The movable part of the cylinder connects to two liftarms that operate the
polarity switch, one side of which is wired to the battery box, while the other is
hooked to the compressor.The polarity switch has three positions: forward, off,
and reverse. In this application, you use the first two of them.When the cylinder
is retracted, the polarity switch connects the battery box to the compressor. Just
before the cylinder reaches its maximum extension, the polarity switch turns off,
thus stopping the motor. By adjusting the number and strength of the rubber
bands, you can set your pressure switch for the ...
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