paper thin 21cm ruler

This is a paper thin 21 centimeter ruler. It's best to print with 2 filaments for contrast. This way you can see the tick marks and numbers clearly. I recommend the best resolution detail setting. If you only have 1 extruder then pause the print after the z-axis (.5mm) is completed. So when (.55mm) begins printing, change the filament to the 2nd color and continue printing.

There are a lot of rulers posted. However this one takes up the least amount of filament. I usually print some of these