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  1. OPABolt

    electromagnet construction question

    first of all i would like to appologize if this is in the wrong place. That said, I need help building 2 small opposite pole electromagnets to move a pair of small rare earth magnets back and forth approx. 1-2 inches along a rail. |e-mag1| -rail--|perm.mag|--rail--|e-mag2|...

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