Before the invention of automatic crossing gates, railroad crossing guards protected grade crossings. Usually holding a flag, lantern, or stop sign or operating a manual crossing gate, the crossing guard would warn motorists of an approaching train. A simple wooden shanty provided shelter for the crossing guard.
Whatever your modeling railroading scale, a crossing shanty is a quick, easy, and fun scratchbuilding project.
I think what he is referring to about the Ratio of the Scale is when you photo copy the plans you increase the magnification the noted percentage for your own scale, and the plans will photocopy the size of your actual scale you desire. For example if you want the O scale, when you photocopy the plans you increase the magnification of the scanner or copy machine to 133.3% larger. When it copies it will print equal to the O scale or 1/4 inch per foot per the O scale measurements. Am I correct with this?
I am confused as to how the converting to HO scale works. Could you explain how to do it in more detail?