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  • Users: NDimitrov
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  1. NDimitrov

    Threads rolled vs cut

    Hi all, the answer to my question is in almost every engineering book, but how far off are single point cut threads from rolled ones ? To my knowledge the best scenario, regarding strength and fatigue life is rolled threads after heat treatment, but that's quite difficult to achieve in the...
  2. NDimitrov

    DIY crankshaft balancing with an oscilloscope

    Hi all, since I cannot find a local place to balance my crank I started to make a balancer stand using ADXL335 accelerometers and a QRD1114 looking at a reflective tape for triggering . Finding the heavy spot using the acceleration plots is the easy bits . I can't make the connection between...

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