From: jalbers on
I want to use Mathematica to for some sheet metal layout applications
where the output is printed out on paper. A simple example would be a
3,4,5 triangle where the sides are 3 inches, 4 inches, and 5 inches.

Graphics[{Line[{{1, 1}, {4, 1}, {4, 5}, {1, 1}}]}] would produce the
triangle, but how can I guarantee that when the notebook is printed
out on paper, the sides of the triangle will measure 3 inches, 4
inches, and 5 inches and the vertex at (1,1) will be 1 inch in both
the x and y directions from the origin?

I thought about through programming have Mathematica generate a file
of postscript commands and then distilling the postscript file but I
hope that there is an easier way. Any help would be greatly
appreciated. Thanks