Extrulibrator 1.75mm V1

The Extrulibrator helps with measuring the actual length of nominally 100mm extruded 1.75mm filament. It has 7 tunnels. The length of the tunnels range from 97mm to 103mm in 1mm increments. The diameter of each tunnel is 2mm. Measure the filament by inserting it into the appropriate tunnel. Start with the shortest tunnel and work your way up towards the longer tunnels. If there is no excess filament sticking out on either side then you found the correct measurement. Use that information to adju