Variable to Constant Gearbox Prototype
thingiverse
Dr. Salim Azzouz's study at Midwestern State University's McCoy School of Engineering challenged senior engineering students to create a gearbox that transforms variable rotational input into constant angular output. The prototype, featuring a printed planetary gear train, fulfills this requirement. With a single shaft input, the sun gear outputs at the same speed, while adjusting the lower hub gear's speed, slowness, or counter-rotation allows for desired output velocity variation. Students and the researcher closely collaborated on design and manufacturing using SolidWorks, Makerbot 3D printing, CNC lathe-turned axles, Makrolon support structure, and Delrin bearings sourced from mcmaster.com. Future study plans include motor connection to input and differential, tachometer velocity monitoring, recording results at varying speeds, and comparing with theoretical calculations.
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