Quote:
Originally Posted by ar2
Any ideas guys???
-Pneumatics
-some sort of piston
-springs
-forklift
we were considering the springs but will FIRST allow?
is it safe? Cocking 3 springs before the match??
Pneumatics; how much force required??
Actuators; what kinds are allowed??
http://www.firgelliauto.com/default.php?cPath=94
what are your inputs?? |
Here are some tests my team did:
Pneumatics: Our team got the biggest piston we had laying around (1" bore 1.5' throw) and rigged it up to a pressure device rated at 60 psi (the maximum allowable pressure on the robot) and placed this piston behind the ball which we laid on some inclined sliders. Not only was the mechanism HUGE but it only was able to launch the ball 4' max, thus not clearing the overpass.
Springs: We used the same inclined sliders and made a little "cart" that carried the ball. This cart was attached to a mass of surgical tubing. We hoisted back the cart and released it. We were able to shoot the ball about 3'. This system was very dangerous, and involved the cart shooting forward and coming to a dead stop. We decided that designing a mechanism to draw back the springs would be very difficult.
And of course, neither of these designs presented a method of actually picking up the ball and loading it...
Forklift?
