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Re: "Pitching Machine" motors
Oh, check out this post that has a spreadsheet to calculate velocities, angles, etc. and try reading this thread that has stuff with torque, speed, and motors in it that address the questions on the OP.
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Also, this. |
Re: "Pitching Machine" motors
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This gets difficult for me to explain without a whiteboard for drawings in front of me, but here is my best shot: What you really want to find out is if you can get a ball moving fast enough to go the distance. The speed at which you need can be solved with basic high school physics using motion formulas. Enlist a student or physics teacher at your school if this isn't making sense. This is often taught as "projectile motion" in the classroom. After you have found the speed you need, gear the shooter to spin at this speed, and off you go. Other things to consider on a shooter: -How much you compress the ball -Weight of flywheel (heavier will keep it from slowing down on shots as much because it will have a higher moment of inertia) -Gripping material (KoP wheels from this year have not wielded good results for me either) -Time and distance of contact (remember force times distance) -Spin Best of luck! |
Re: "Pitching Machine" motors
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Re: "Pitching Machine" motors
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Re: "Pitching Machine" motors
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Bottom roller + hood: Two forces: the force from the wheel and the force of friction from the hood. both work together to create backspin; friction works against the wheel to create forward acceleration. Top and Bottom roller: Two forces: The wheels work against each other, with the bottom wheel applying more torque to create backspin; the wheels work together to create forward acceleration. So yes, there is a backspin consideration involved here - more backspin would be easier to get out of a hooded shooter. However, the wheel is forced to do more work, so you lose more momentum between shots, and can't shoot as far. |
Re: "Pitching Machine" motors
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