If you are using a non-touchscreen 3d printer, it most likely has the option to adjust E steps/mm. (2)Calculate the correct E steps/mm: E=E (current)/R (1)Calculate the ratio of the preset extrusion and the actual extrusion: R=((100mm-avg.D1)/100mm)*100% (8) Find the current E steps/mm setting: Main > Configuration > Advanced Settings > Steps/mm > E steps/mm (demonstrated on Ender-2 Pro) (the difference between D1 and D2 may not equal 20mm due to deviation) (6) Repeat the above operation several times to obtain more accurate results. If the first mark is invisible due to over-extrusion, calculate the D1 according to the “distance between the entrance of the extruder and the second mark”(D2) using this function: D1 = D2 - 20mm (5)After the extrusion is completed, record the “distance between the entrance of the extruder and the first mark”(D1). ![]() (motion > move axis > extruder > move 10mm > set 100.0) (4)Push the filament to the start point, then operate the e-axis motor to extrude a 100mm length of the filament. (3) Make a mark with an oil-based pen at the position where the filament section is 100 mm from the “start point”, and make a second mark 20mm after the first mark. (2) Make a mark on the filament with an oil-based pen as the “start point” (1) Preheat the filament to regular printing temperature(regular PLA 195℃) In order to complete the measurement of the actual extrusion volume, we need a scale or vernier caliper with a measuring scale larger than 100mm, an oil pen, and a roll of filament in good condition. In order to determine whether the extruder is having an over/under extrusion issue, we will need to measure the actual extrusion for a preset length, then compare the numbers to see the degree of match.
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