Could you at least use search feature especially on the google?
You ask only if you don't understand or those methods didn't work for you. There's a ton of information too, just use the correct keyword
There're 2 types, extruder calibration and extruded plastic calibration widely known as flow rate calibration, enter these on google and you would have your answer
Edited 1 time(s). Last edit at 08/07/2015 04:27PM by sarf2k4.