Quote Originally Posted by Gidde View Post
It also occurs to me that part of my problem is the discrepancy between print resolution and screen resolution. Stuff just looks bigger on screen than it will printed.
I'm sure dpi settings obscure this a bit, but one thing I've done is to check a ruler against a grid on screen to find out what zoom percentage actually gives me true size. For example, in inkscape for one inch on screen to represent one inch IRL, i need to zoom to 134%, not 100%.

I'm sure you could test this by printing a test page of symbols and comparing them to their on screen size until you found a true-to-sight zoom level.