Enter the diameter of your prinetr's hot end nozzle.
Nozzle Diameter
mm
Enter the diameter of your filament.
Good precision is reguired, so use a calipier and do multiple measurements along the filament, then compute the average.
Diameter
mm
Enter the temperature needed for extruding your filament.
A rule of thumb is 160 to 230 degrees C for PLA, and 215 to 250 degrees C