I slightly modified or better configured this Thing
to get a nice looking tags and optimize them for printing with only one extruder.
I added a scirpt for generating the tags form a list of strings.
0.2 mm Layer height 0.4 Nozzel
I used grey and green ABS Fillament from SUNLU with a singel extruder.
I printed many tags at once and it was so designed that at Layer 13 i had to change the Fillament.
I use this Simplify3D Fillament change code
Because the compilation takes very long i wrote a bash script for automaticly generate the .stl files from a array of strings in the make.sh. I used macOS but for Windows you can use git Bash or Cygwin. But don´t forget to uncomment the line1.