Summary

Simple coaster with Denver Broncos logo etched in.

Instructions

Designed coaster using 123D design then took Broncos logo and etched it out in center.

In order to make multicolor, I watched the print in Pronterface and when it started the layer with the base of the inner etching, I paused it, changed colors and resumed. Once it completed the base of the etching and the first row above it (noted by seeing the outline of the etching), I paused again and changed back to the original color and resumed.

Update: created new file with white added...
Orange @ 0.0mm
White @ 2.8mm
Blue @ 3.6mm
Orange@ 4.4mm

Denver Broncos Coaster