Robox 3d printer, User Manual, Page: 112 / 122

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8.0 Supplementary Information
Extrude
The act of placing the build material on the build platform,
normally by heating thermoplastic to a liquid state and pushing
it through one of the nozzles on the printhead.
Extruder
This device is used for pushing the filament to the head along
the Bowden tube. It uses two contra-rotating feedwheels to
pinch the filament and feed it in a very controlled manner using
a stepper motor.
Faceted
This refers to the appearance of a low-resolution 3D model,
where individual polygons are visible in the printed object. The
resolution of a 3D model is controlled by 3 parameters - chord
length, step angle and step size. Reducing the size of these
three values will result in a higher resolution model (smoother
surface).
Feed Rate
This describes the speed at which motion axes move, usually in
mm/s and can refer to the X, Y, Z and extruder ‘axes’.
Feedstock
See filament.
FFF
Fused Filament Fabrication. Where a filament of one material
(plastic, wax, metal, etc.) is deposited on top of or alongside the
same (or similar) material making a joint (by heat or adhesion).
Filament
The ‘feedstock’ for a FFF 3D printer - a thermoplastic which has
been extruded into a 1.75mm diameter ‘wire’ which is fed to the
print head and melted before being extruded onto the build
plate.
Fill
This describes all extruded material on the inside of a printed
object. It’s density can be varied (as a percentage) between fully
hollow and fully solid - see Fill Density.
Fill Density
This describes the density of the fill - 0% for a hollow object,
100% for a fully solid object.
Firmware
This is the computer program which runs on the hardware itself
and is stored in flash memory on the mainboard.
Flash Storage
This refers to the storage available on Robox® to store GCode
print instructions during printing. It also maintains a history
of previous prints, allowing them to be reprinted without
reslicing. It is cyclic storage (once full, begins to overwrite from
the beginning) which is not accessible on any device except
Robox®. A microSD card is used as the storage medium.