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 math and physics save a lot of money!!! Pay attention in school - this is why your teachers are torturing you with this stuff. - Chris Hibner [more] |
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| math and physics save a lot of money!!! Pay attention in school - this is why your teachers are torturing you with this stuff. - Chris Hibner [more] |
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Re: simulation/analysis of motorized shooter
Mark, For rough ballpark: assume load moment of inertia of a 3 pound 6" dia uniform disk. Assume CIM shaft coupled directly to wheel. 5300 RPM free speed, 343 ounce-inches stall torque, linear. At setpoint of 4000 RPM, tune so decel (motor command = 0) is 1/3(?) of accel (motor command = 1). Controller: bang-bang needs no explanation. TakeBackHalf can be found here. |
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