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Originally Posted by David55
Just wondering if anyone has tried out the vex pneumatic kits and what they think about it...
I know it is very very expensive but it just looks too cool!
David
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I've used the Vex pneumatics before, and I love them!
Here is the robot that our group used them on:
http://www.chiefdelphi.com/media/photos/21991
And here is a better photo of the double-acting cylinder that we used:
The pneumatics work really well for any sort of linear motion devices that have two positions only. Pneumatics are different from hydraulics; with pneumatics you cannot get intermediate positions with the pneumatics (you only get fully retracted/extended), while hydraulics can be stopped mid-stroke and hold their position. This is because the air is compressible while a liquid (as in the hydraulics fluid) is not.
As for some ideas that can use pneumatics - the sky is the limit. Arms, grabbers, claws, shifting transmissions, etc. and much more can all be used with the pneumatics.
