Basic sign that I made. I'm always talking about my 3D printers, and felt like I should come with a disclaimer. Sign is set up for color change printing. Full size of the stl is approx 220x175mm. I have printed the sign down to 50% and still keep all the lettering readable.

Colors changes listed are for the smaller of the two prints and based off of .2 layer height. I kept the z height equal on both prints just to make the changes easier.

Black - start (background)
Red - layer 11, 2.2mm (all lettering)
Blue - layer 21, 4.2mm (3d printer lettering)

Its not perfect, but I thought I would share.