User manual
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MOTOR ASSEMBLY:  The stepper motor 
and the drive block that push filament 
into the extruder.
MOTOR WIRES:  The bundle of electrical 
wires that provide power to the motor.
NOZZLE:  The opening on the end of the 
extruder from which heated MakerBot 
PLA Filament emerges to be spread onto 
the build plate.
POWER SUPPLY: The A/C power supply 
for the MakerBot Replicator 2. It includes 
a block and two plugs.
REPLICATORG: Free, open source 
soware that allows you to manipulate 
.stl files and GCode files and save them to 
be printed on the MakerBot Replicator 2.
SD CARD:  Secure Digital memory card that 
can store digital data and be read by the 
MakerBot Replicator 2. The SD card used with 
your MakerBot Replicator 2 must be formatted 
FAT16 with a maximum capacity of 2GB.
SLICING:  The process of turning a 3D 
model into instructions for your MakerBot. 
Slicing results in a GCode or .x3g file.
SPACERS: The plastic pieces that keep 
the extruder fan and heat sink secure 
and in place.
SPOOL HOLDER: The plastic piece that 
attaches to the back of the MakerBot 
Replicator 2 and holds the spool of 
MakerBot PLA Filament. The spool holder 
ensures that the MakerBot PLA Filament 
is fed evenly to the extruder.
.THING:  A file format used by MakerWare 
that allows you to print multiple 3D 
models on the same build plate.
THINGIVERSE:  A website for uploading 
and downloading 3D model files for use 
with the MakerBot Replicator 2.
THREADED ROD: The long rod behind the 
build platform that is threaded along its entire 
length. This rod allows the build platform to 
move up and down, or along the Z-axis.
TOOLPATH: The set of instructions your 
MakerBot will use to build an object. 
Toolpaths for the MakerBot Replicator 2 
must be saved as an X3G file.
.STL: A widely used file format for  
3D models.
USB CABLE:  A cable that allows 
your computer to communicate with 
the MakerBot Replicator 2 in order to 
update firmware.
.X3G:  A compact format for describing 
the toolpath your MakerBot Replicator 2 
will use to build an object. 
GLOSSARY OF TERMS CONTINUED
TROUBLESHOOTING, DIAGNOSTICS, AND MAINTENANCE










