Really, Catan number tokens? Sure, I could have reused the cardboard ones from the original set with my custom 3D printed board, but where's the fun in that? This is a set of number tokens for the basic 4 player set. I've also created tokens for the 4 player set (yes, they are different).
Since I couldn't find an existing design for this that had all the elements I wanted, I made it from scratch. This is the "Goldilocks just-right" design I was looking for.
The tokens are 25 mm in diameter, double sided with the letters embossed on the back (don't panic, the number/letter associations are correct, my preview pictures are sorted for pleasing numeric and alphabetic order, not front-to-back accuracy). The numbers on the front are nice and large for better visibility, and the pips are the same height as the numbers so that the robber sits evenly on the top rather than at an angle that is prone to making it fall if the board is looked at cross-eyed. The font is Minion Pro, Minion being the font widely used on the Catan site, in many of their publications, and is a fairly close (but not quite exact) match for the text on the original number tokens.
These are designed as a single color print, but I used rawlogic's superb Change Filament At Z Cura Plugin to print mine duo-color. I heartily recommend that over painting.
I've found - on the MPSM at least - that the top layer of text fills in oddly, leaving gaps in the print, especially on fonts with narrow elements. After much tinkering around with this particular print, I've found that reducing the number of inner/outer walls (these don't need tremendous wall strength), upping the skin overlap percentage and the flow rate generated a very satisfying surface on the numbers. Those particular settings are:
Wall Line Count: 1
Skin Overlap Percentage: 45%