03-09-2011, 07:33 PM
well Steamtrains, I use brass rod for most of that type of detailing. You can generally find the stuff made by K&S Engineering at most hobby shops. I like .020 for sand lines and some larger air lines. For grab irons, most air lines, cut levers, and that sort of thing I use .016. as far as most other piping I usually just eyeball it. I used everything from plastic tube to #18 to #24 solid copper wire with the insulation removed. As long as it looks right it's all fair game in my book.
My other car is a locomotive, ARHS restoration crew