Need a quick damage counter? Look no further! 

Its a 4 Piece Print with a Colourchange you can do without MMU. Simply Import the Dials in your Slicer, Seperate to Objects, and make the Dials Unprintable. Now you are just left with the Numbers. 

Make shure to Flip the Dials so the Numbers are on the Print Bed!

Print them First, and Keep your Bed hot after the Print Finnished. Next make the Numbers Unprintable and just print the Dials with the Cut out Numbers, and your Dials are ready. the rest is an easy Print. just press the Parts together and you are done.

You can scale it up as much as you like, but i would not make it any smaller, except you are printing with a .2 nozzle.

The Black Version is Printed at 100%, and measures 70mm, the White one is Printed at 115% and measures 80mm 

Have Fun!