12 - 2011/02/03 15:09:17
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The original cast rotor that shipped with the machine. It was out of balance by about 8 grams. This is the rotor after being sent out for dynamic balancing. This should run much smoother. Casting will always leave voids and imperfections that require balancing. Cast aluminum should also be heat treated (tempered) to ensure full strength. We made a video showing the machine before balancing: http://www.youtube.com/watch?v=z3cJnUVsjq8 |