Graphics Reference
In-Depth Information
(steps per mm) and position the extruder at
a specific point at the start of a print, among
other things.
Figure 5-22.
Printer settings
The Z offset is set at 0 mm by default, and
should be left there unless you frequently
change to a build platform of a different
thickness. If, for example, your heated glass
platform is removable, you can set the Z off-
set to its thickness so your machine will au-
tomatically adjust for it when you slice a part
with that profile.
The G-code flavor should be fine at RepRap
(Marlin/Sprinter), but definitely take a look at
the drop-down and select the one that most
accurately describes your machine.
Figure 5-23.
Custom G-code settings
The custom G-code will nearly always be
specific to your model of machine, so you
should check the manufacturer's documen-
tation for these settings.
The start G-code often includes commands
to zero out all three axes, heat up the extrud-
er and heated bed, do some sort of test ex-
trusion, and start the print.
The end G-code typically turns off the ex-
truder and heated bed, zeros out all three
axes again, and lowers the z platform for easy
part removal.
Leave the “Use relative E distances” box un-
checked unless you're absolutely sure that
your machine uses relative positioning. Most
use absolute positioning, which specifies the
end point of the current move in the G-code,
regardless of where you are.
The extruders value should only be changed
from 1 if you have more than one extruder
on your machine. If so, go back to the Multi-
ple Extruders section of the Print Settings tab
and mess with those settings.
Extruder Settings
Now on to the Extruder 1 section of the Print-
er Settings tab (
Figure 5-24
). The nozzle di-
ameter should be provided by your
manufacturer, but if not, take a pair of digital
calipers to it and measure it yourself. It will
most likely be 0.35, 0.4, or 0.5 mm.
Custom G-Code
Custom G-code (
Figure 5-23
) can be used to
override the default calibration settings
