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Originally Posted by bombadier337
I was just wondering how (if you're willing to say) other teams are thinking about shooting balls to the center goal. We are leaning to a baseball shooter type machine (2 spinning wheels). We're trying to pick the main motors, and will most likely use the new mini-bike motor. It seems to draw less power, and have a pretty decent amount of force. That type of shooter would also allow for a fairly rapid succession of shots. Is anyone thinking of any other kind like pneumatic, catapult, or something I can't think of?
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Be sure to serach the rules/strategy forum, there's a lot of discussion on the method.
As far as motors go, you need to determine the energy needs, and pick a motor that will supply that. First, what is the mass of the wheel(s), and how fast do you want them spun up to speed after autonomous starts? Then, how much energy (think inertia) will launching a ball remove from the system, and in what time do you want that returned by the motors?
If you're using a wheelbarrow tire, then the big CIM might be a good choice - it'll get the tire up to speed real quick. But, it'll be just loafing along after launching a ball, so maybe it's too much??
Anyway,. the point is: Do the math. Make reasonable assumptions and guesses. That'll help you decide.
As far as other ways of launching balls: other threads have discussed this, one or two wheels seems to be the most common approach.
Don