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Originally Posted by ghhs_1527
I found 3 position cylinders from bimbas website ( See this PDF! {584kb}) and i would like to know if these are legal or not. |
If you are looking for multi positioning on cylinders. There are old threads that have many ideas, search for multi positioning. Basically you need two things a way to sense where your mech is (a pot works well) and a way to stop air on all ports. SMC makes a legal valve body that does extend, retract and all ports closed. We used it on our 2004 bot and it works wonders. Good luck I searched for you this is what we did "What our local supplier has is a SY3340-6LOU The second three in the number is what tells you it's a 3 position closed center valve, the 6 indicates 12volts. We got two and they bolt right on the body with the fittings on them, they are not pulsing and they only will "pull in" with the correct polarity, red to positive. This solved our problem, we were having trouble with our piston action not being to go from down to up, once started down you had to go all the way down. I think this is do to the nature of pilot valves. Any way, on our pretend-a-bot programming table this valve works great and we got them at about $60.00 dollars as we didn't get the wires or the fitting body. We are also putting the flow control fittings on the ea and eb holes on the fitting body and can have different speeds for up and down."