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  • metal mite
    replied

    Al
    Make them like the rods on a real loco similar to your freelance model.
    What're you making?
    mite

    Leave a comment:


  • SGW
    replied
    7 1/2" gauge, I assume?

    I don't know offhand, and I doubt that there is a single fixed ratio, but one obvious thing to do is go through back issues of Model Engineer, Modeltec, Live Steam, or whatever, and see what was done on other engines.

    Leave a comment:


  • Al Messer
    started a topic Ratios

    Ratios

    Is there a ratio between the diameter of the crankpin and the thickness of the parallel rods and main crank rods of a side rod locomotive? My free lance job has 5/8" diameter crankpins. What should the thickness of the rods be?
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