Graphics Reference
In-Depth Information
between every filled layer, etc. I've always left
this at 1, the default.
You can also choose to insert a solid layer
every
n
layers, for extra stability. The fill angle
is the angle at which the extruder will do its
filling paths, based on the orientation of the
axes in your machine. I don't see how chang-
ing this will affect your part very much, but
it may have varying levels of impact based
on the fill patterns you use.
I typically leave “Only retract when crossing
perimeters” unchecked. We'll learn about re-
traction soon, and then this will make sense.
Speed
Now on to speed (
Figure 5-9
)! Perimeter
speed determines how fast the perimeters
will be printed. 50 mm/s is a good place to
start, but check your printer's documenta-
tion because some printers can go much
faster while others must have this value set
lower. The small perimeter speed is how fast
small features will be printed. This is typically
slower than your normal perimeter speed, to
give the plastic more time to cool down.
Figure 5-9.
Setting speed
Infill speed is how fast your machine will
print during the infill stage. Since clean lines
and extreme accuracy aren't paramount
here, crank it up! The speed I'm using here,
80 mm/s, is quite conservative, especially for
the Ultimaker, but it's probably a good place
to start.
Solid infill speed determines how fast the
solid infill layers will be printed. These paths
are more important than your everyday in-
fills, so keep this slower than your standard
infill speed. Don't bring the speed down too
much, however, since 100% infill layers take
a while.
External perimeters are the outer perimeters
of your part—the most important ones. I'd
start with a speed similar to, if not exactly the
same as the standard perimeter speed, and
go from there.
The top solid infill speed is how fast the top,
100% filled layer(s) will be printed. Since it's
important that these look nice, keep this
speed lower than your two other infill
speeds.
Bridges are used to fill in a gap, where the
extruder stretches filament between two
walls over air. If the gap's any greater than
around 0.5”, you're going to get drooping, no
matter how fast you move, but moving
