3D printer DETAILS for two color printing OPTION #1-single extruder printer - The STL "full" file can be used to print two colors. Set the 1st layer to 0.3mm then pause the print after the 1st layer is done, change colors and continue the print. OPTION #2 -dual extruder printer - The STL "back" and "lines" files can be used with CURA 2+ two print two colors by assigning a different color to each STL.