Filament Swatch

I upgraded to the new Prusa MK3 R3 extruder design and needed to do some quick fine tuning of the Z axis for most of my filaments. Didn't want to waste time and materials on 20mm calibration cubes (love those cubes btw) so I made some filament swatch with labels to calibrate that could also be clipped onto the Prusa MK3 frame to keep track of your filament inventory. There's also a hole to attach the swatches to some kind of loop if you want.

Each type of filament swatch has a different heigh