Sandbox

$\operatorname{erfc}(x) = \frac{2}{\sqrt{\pi}} \int_x^{\infty} e^{-t^2}\,dt = \frac{e^{-x^2}}{x\sqrt{\pi}}\sum_{n=0}^\infty (-1)^n \frac{(2n)!}{n!(2x)^{2n}}$

1. Configure your desired print parameters. The print parameters will depend on what you are printing and the quality that you're looking for. Here are some guidelines:

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The print parameters will depend on what you are printing and the quality that you're looking for. Here are some guidelines:

1. 1. Layer height: the Ultimaker can print between 0.1mm and 0.25mm. 0.1mm should only be used for high precision, high detail prints; 0.15mm should be used for normal prints; 0.2-0.25mm should be used for fast prints where you don't mind the quality (e.g. holder, internal component, etc).
   2. Shell thickness: this value should be a multiple of 0.4mm (the width of the nozzle). With 0.4mm you'll get 1 solid layer, with 0.8mm you'll get 2 solid layers, etc. 0.8mm is fine for most prints.
   3. Enable retraction: this retracts the filament when the nozzle moves from one area to another whilst not printing. It is best to leave this enabled.
   4. Bottom/top thickness: the bottom and top thickness of the solid layer. This value should be a multiple of the layer height - a value between 0.2mm and 1mm is best for most prints, with 1mm used for very delicate models.
   5. Fill density: this is the density of the fill inside your model. Due to an excellent calibration of our Ultimaker, almost all prints will require less than 30% fill. 10% for just structural support, 24% for an average print (after 25% Cura slices your model differently), 30% for a solid print of an average sized object. For objects that require superior structural strength, up to 60% is recommended. 80% can be used for very small complex objects, and 100% is used on a case-by-case basis.
   6. Print speed: this is the speed at which the Ultimaker will print. 100mm/s is recommended for detailed prints, 120mm/s for average prints, and up to 150mm/s for fast, lower quality prints.
   7. Printing temperature: we have tested and 235°C works best. Leave it as is.
   8. Support type: only use for prints with significant overhangs.
   9. Platform adhesion type: not required for PLA prints.
   10. Diameter: the diameter of the filament (currently 2.89mm). Do not touch this unless you are changing the filament and have remeasured it (sometimes the value does not match the specification).
   11. Flow: I have no clue what this does. If it ain't broke, don't touch it.