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  1. G

    Spanning a room MAYBE

    An engineering challenge it is. and i've always been a rebel without a cause! My idea for the span bridge is half-inch copper tubing for the main support. And if needed support from the main ceiling. I guess it will look like one of the rail bridges crossing the mississippi river. I can solder...
  2. G

    Spanning a room

    Spanning a room MAYBE I am new to the forum so i dont know if this question has been asked yet. Does anybody know the best way to span a 14 foot room without building the golden gate bridge? The 14 foot opening is between two rooms and i want the train to run overhead so everybody can see it...
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