Changes to Step #7

Edit by Grégoire Saunier —

Edit approved by Grégoire Saunier

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[title] Calibrate extrusion multiplier
[* 1] Measure all the perimeters of your cube and calculate the average.
[* 1] Calculate your new extrusion multiplier using the formula on the second image. Here is an example:
[* 1] Your old extrusion multiplier = 0.95 and your average perimeter thickness = 0.43mm.
[* 1] Your are using a 0.4mm nozzle, so your extrusion width is 0.45mm.
[* 1] Your new extrusion multiplier = (0.95 · 0.45)/0.43 = 0.994.
[* 7] Report the new extrusion multiplier value in your filament settings of slic3r PE.
[* 9] Print again the part to verify the value is correct. Repeat those steps if necessary.
-[* 11] ***Tip:*** The extrusion multiplier is generally constant across a whole spool but the filament diameter will change. Therefore, before slicing a part, measure the filament diameter you are going to use and report the value in slic3r PE. When you change spool for the same filament type/color always check extruder multiplier.
+[* 11] ***Tip:*** The extrusion multiplier is generally constant for a whole spool (if you do not change temperature) but the filament diameter will change. Therefore, before slicing a part, measure the filament diameter you are going to use and report it in slic3r PE.