Simplify3D User Forum

Hi team , I would like to see a second set of setting for my second nozzle filament size, under other tab , Filament properties. I found a lot of the cheaper plastic varies in dieamiter size from one roll to the next. I know I could always use the nozzle size and extrusion width to compensate but I think it be much easier in its own tab. Thanks

Patrickp wrote:Hi team , I would like to see a second set of setting for my second nozzle filament size, under other tab , Filament properties. I found a lot of the cheaper plastic varies in dieamiter size from one roll to the next. I know I could always use the nozzle size and extrusion width to compensate but I think it be much easier in its own tab. Thanks

I would actually recommend keeping the nozzle size and extrusion width the same, and adjust the Extrusion Multiplier instead!

For extrusion multipliers; lets say your filament diameter was set to 1.75 mm, but your second nozzle had 3 mm filament. To change the extrusion multiplier for the second nozzle, you would calculate by doing the following.

Since area is pi*radius^2, pi would cancel when comparing the two, and the extrusion multiplier needed would be scaled proportionally to the radius's squared.

(filament diameter Other Nozzle/2)^2 / ((filament diameter Nozzle Used/2)^2)

(1.75/2)^2 / ((3/2)^2) = .340277 extrusion multiplier for your 3 mm filament nozzle.

**This intuitively makes sense, since the thicker 3 mm filament nozzle has a much larger volumetric output, you would want to shunt it with a low extrusion multiplier.

I'm about to go and try this, but wanted to note that the algebra yields a simple equation for diameters..
(to boost extrusion from 1.75 to 3.0)

and obviously invert for reducing 3.0 down to 1.75 ..

Version 4.0 now includes separate filament settings for each extruder. Click "Edit Process Settings", go to the Other tab, and select the toolhead index that corresponds to the extruder that you have the filament loaded in. You can then change the diameter, price, or density for that specific extruder.

Hopefully this is much easier for users with different diameter filaments loaded in their printers!