Questions about Pneumatics

Our team got a double action pneumatic kit today. I did some basic testing with it today. After trying it out and trying to program, I had a couple questions.

  1. Is it normal for one of the actions (whether it’s coming out or going in) to be a bit faster? Is this just because of the solenoid?
  2. What does the R, P, and R stand for on the solenoid? What does each hole do?
  3. What are the little screws located in the right angle valves on the pistons meant for?
  4. Lastly, is it possible to program the piston so that I press a button, and it goes out and stays out, then when I press another button is goes in and stays in?
  5. what are some general pneumatics tips and recommendations?

Thanks.

1 yeah, thats generally the consensus, as air leaving the piston takes a second or so

4 what we generally do, is we assign the piston value a variable, so that whenever piston open=x=1,
closed=-x=-1
And whenever you want it to change, the button press is like multiplying x*-1

  1. Yes but it is adjustable. See 3.
  2. The screws adjust the air flow out of that fitting slowing down the motion in 1 direction.
  3. Sure just say
if(button1)
   piston =1;
if(button2)
   piston =0;

Attached is some information that may be helpful in addition to the instructions provided by VEX.
pneumatics information.pdf (313 KB)