Blog Post 30: Concept 3 - Alternative Handle Springs + Complete Assembly Motion Studies

I decided that it would be best if compression springs were used instead of torsional springs to return the handle to its starting position, this also kills two birds with one stone seeing as I now don't have to design a stopper for the gear dowel to limit rotation (the nuts on the end of the spring guide rods do this). I have also made a motion study showing the device in action with a standard jar.