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Changes to Step #13

Edit by Jason Znack

Edit approved by Jason Znack


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[title] Volumetric Limit in Relation to Speed
[* black] Now that we have established the volumetric limit for the hotend, we can ensure that our combination of speed, extrusion width, and layer height, do not exceed this limit.
[* black] First we should determine what layer height and extrusion width we will use. The Ender 3 comes with a 0.4mm nozzle, so the optimal combination would be 0.4mm extrusion width and 0.2 layer height, just to keep it simple for the purpose of this guide.
[* black] Next we can determine the maximum print speed we can use while still staying within the volumetric limit of 10mm^^3^^/S^^2^^ using the formula '''Max Print Speed = Volumetric Limit / ( Layer Height * Extrusion Width)'''
[* black] '''Max Print Speed = 10/(0.2*0.4) = 125mm/s''' So now we have a speed limit for that combination.
[* black] '''Note that this doesn’t take into consideration the ideal print speed for the printer mechanics or the ability to cool the extruded plastic fast enough.'''
[* black] Note that if we increase the extrusion width or layer height, the speed limit decreases. For example with 0.3 layer height and 0.5 extrusion width: '''Max Print Speed = 10/(0.3*0.5) = 66mm/s'''
[* black] '''Keep these limits in mind when choosing slicer settings.'''