Announcement

Collapse
No announcement yet.

Ratios

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • 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?

  • #2
    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.

    ----------
    Try to make a living, not a killing. -- Utah Phillips
    Don't believe everything you know. -- Bumper sticker
    Everybody is ignorant, only on different subjects. -- Will Rogers
    There are lots of people who mistake their imagination for their memory. - Josh Billings
    Law of Logical Argument - Anything is possible if you don't know what you are talking about.
    Don't own anything you have to feed or paint. - Hood River Blackie

    Comment


    • #3

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

      Comment

      Working...
      X