Re: Determining Rung Spacing When Scratch Building Ladders
Robert kirkham
Thanks for the explanation Scott (and Greg Kennelly of list).
Rob Kirkham
From: mailto:STMFC@...
Sent: Sunday, June 21, 2015 12:26 AM
Subject: Re: [STMFC] Re: Determining Rung Spacing When Scratch
Building Ladders Bill's explanation was hard for me to follow, and
I know the trick. I'll try to explain it by example.
I took an HO boxcar off my layout and, using a
ruler, measured a side ladder. The top rung is 19/32". or 1.28125" from the
bottom rung, center to center. There are 7 rungs in the ladder. 7 rungs means 6
spaces between rungs. The spacing between rung works out to .2135", an
inconvenient measurement!
For this to work, you want to use a measurement
that is less than the total (1.28125''). 6 times 3/16" equals 1.125", a lesser
number.
Now, Take a piece
of paper and draw 7 parallel lines, 3/16" apart. Take a piece of cardstock, and
make a pair of small marks 19/32" apart along one edge. Align the bottom
mark on the cardstock, with the bottommost line.Rotate the card so that the top
mark lines up with the top line. This is where the angle comes in. Now all the
other lines can be marked on the card, and they will be evenly spaced.
This is easier to
do, than explain. Try it with my numbers, then you'll grasp the concept.
Scott Haycock
OK, I’m always grateful to learn new tricks, but this one I do not
follow. Bill  what is the advantage you are gaining with the diagonal
lines? I do not see how drawing equally spaced marks on the diagonals is
easier than doing so on the vertical line? Clearly I’m missing
something. Can you explain.
Rob Kirkham

