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Originally Posted by Rickertsen2
In most circumstances, pneumatics can only be positioned at their extremes. There are ways to position them midway, But i would not recommend it for an arm. Motors would be a much better way to go
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I dis, and do agree with this statement. Motors do work well at controlling positioning. In fact that is all Sparky has ever used for controlling an arm. Very evident in Sparky 2, and 5. Both used in manipulation of 2x multiplier balls. There is one way that you can very effectively control the positioning of a pnuematic cylinder. The catch is that with using it as a contorler for an arm, you might have some issues with pressure. In my opinion, I find that both ways can be very productive ways of controlling an arm. And if you really want to use air, just marry 2 pistons together to get the desired mid-position stop you want, just like Moe did last year.
ivey