Filament Flow Rate Table

thingiverse

Ever struggled with slicing a print only to find that your filament had a diameter you never suspected?\nMany control panels allow you to set the flow rate as a percentage - but what do you actually set it to?\nThis table provides the answer. Print it out, hang it up and breathe a sigh of relief.\n\n \n \n Custom Section\nMath\n There are no guarantees for the results you will get from this table. Use it at your own risk, verify the numbers with a trained mathematician and a firmware engineer, and don't blame me if a wrong setting causes under-extrusion or fills up your basement with half a ton of excess plastic, creating a spill pattern that summons Cthulhu. You were warned.\nThe accuracy of this table depends on the inner workings of the printer's firmware being as I assume without having read through the source code yet. :-)\nI have assumed that the flow rate setting is simply an adjustment of the extruder speed, and thus the percentage translates to a compensation for the difference between intended and actual filament cross-section area (since volume is area times the length of material being extruded).\nThe cross-section area is calculated as pi rr, and the flow percentage is the intended (sliced) area divided by the actual (filament) area.