Prusa i3 MK3 - Page 48

from the nozzle. When the color is pure without any remains of the previous filament
you can choose the “Yes” option and the printing will continue with a new color.
After confirming, the printer returns to the original position and continues to print.
Other options for multicolored print is to use the filament change option. Choose
the Tune and then Change filament option during the print. The printer will pause
the printing process, unload the filament and signal you to insert the new filament.
The procedure is the same as above.
You should always use the same material or combine materials with similar print
temperatures and settings.
10.7  Printing of non-standard models
Slic3r helps you while printing the non-standard models as models with overhangs and/or
models larger than a printing bed.
10.7.1  Printing with support material
When you print models you can find special cases different from standard printing. The first
case is printing with support material.
If you print an object with a gradient lower than 45° the material overhang would be
preventing the object to be printed correctly. Slic3r allows you to print such objects thanks to
the ‘Printing with support’ function. Support material is an extra structure printed as
scaffolding for the object - you can remove the support material after the printing is finished.
Choose the Print   Settings   tab (1) and click the Support   Material   option (2) in the left column.
First you have to check the Generate   support   material   box (3). Next item - Overhang
threshold   (4) lets you set the minimal angle for printing the support material. Setting this item
to zero lets the printer detect problematic parts automatically and print support where it’s
needed. Enforce   support   option (5) is used mostly with small models or models with a small
base to prevent the object from breaking or tearing out from the bed.
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