Ad-hoc rotating-bending wire fatigue machine. from 12v power supply homemade Watch Video
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Description: Being tested is an 8 inch piece of music wire. nEquipment:n12V power supply from a computer.nAutomotive window motor.nCycle counter from Sharp RT-100 cassette deck.nHomemade shaft-to-wire couplers.nAutomotive 12V relay.nHomemade potentiometer for speed control (~5K)nnThis piece failed (broke-in-two) at 805 cycles. A second piece failed at 909 cycles.
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