FABtotum Personal Fabricator, Руководство пользователя

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FABtotum Complete Manual
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started to curl while depositing and the surface finish was worse.
SHELL THICKNESS: With this parameter you can choose how thick the outside shell can be. It refers to the sides
of the object. The basic setting foresees you should double the nozzle size (i.e. if using our 0.35 mm nozzle you
should set this parameter at 0.7 mm, with our 0.4 mm nozzle, the parameter should be 0.8 mm). However using the
basic setting you may see the internal infill of the object from the outside, so this is not appropriate if you want to
achieve good surface finish, but you will get a faster print and a lighter object. If you want to create solid sturdy
objects, you should increase this as you like.
BOTTOM/TOP THICKNESS: This parameter corresponds to the thickness of the top and bottom shells. These are
very important parameters for a high quality print. The higher the value the better the quality, but also the slower
the process and the more material is used.
FILL DENSITY: This is the material fill percentage inside the object. Lower infill value means faster printing and
lighter but more fragile objects. Higher infill means slower prints, but more resistant objects. Reasonable values
range between 10% and 30%. If you are printing PLA, or another low shrinkage material, you can increase infill up
to 100% (with ABS you will get a lot of warping).
There is a big difference between 25% and 24%: that’s because up to 24% the filling is in both directions for every
layer; from 25%, Cura changes the filling direction at every layer.
PRINT SPEED: This is another parameter that significantly influences print quality. This is the speed at which the
machine will print. If you set a very high speed, the mechanical inertia of the machine will start to produce defects
on the print. Printing at slower speeds facilitates the machine in following the lines and producing good corners, it
also makes it easier for the machine to push filament to the extruder and to cool down the material.
A good range is between 30mm/s up to 120mm/s, with the most used values being between 50mm/s and 90mm/s.
PRINTING TEMPERATURE: The value to set depends on the material you are using: for PLA a good range is
185°-210°, a good temperature to start is 190°. The material gets more liquid with temperature, so if you want to
print at a faster volumetric speed, you will need to increase the temperature of your extruder a little or on the
contrary if you are printing slowly you will need to decrease the temperature to avoid melting the material too
much.
BED TEMPERATURE: This parameter allows you to choose the temperature of the heated bed. We advise you set
this to 40 if using PLA and 60 if using ABS.
SUPPORT TYPE: You should use this when printing an object that presents vertical empty spaces. If set to “None”
it won’t create any support. If set to “Touching build plate” it only creates a support where the support structure
should touch the build plane. If set to “Everywhere” it will create a support also on top of the object.
PLATFORM ADHESION TYPE: These are options that you can select to prevent corners from lifting due to
warping. “Brim” adds a single layer thick flat area around your object. “Raft” add a thick raster below the object
and a thin interface between this and your object. Please note that if you enable either one of the two options, this
will disable the “Skirt”.
FILAMENT DIAMETER: This corresponds to the diameter of the filament used. Our machine is designed to use
1.75 mm filaments which is the value you should put in Cura. Please always make sure to use our tested and
approved high quality filaments when using our FABtotum, you can purchase spools on our store.
FILAMENT FLOW: This is the quantity of material extruded in percentage.
The ones above are basic parameters, if you’re an experienced user you can also work with the advanced settings
below.
RETRACTION SPEED AND DISTANCE: The speed is measured in mm per second and corresponds to how fast
the filament is retracted while moving from one point to the other. A higher retraction speed works fairly well, but
make sure not to set it too high to avoid grinding the filament. The distance is measured in mm and it corresponds
to how much filament is retracted, set to 0 for no retraction, we advise you to set to 4 for good quality prints.
INITIAL LAYER THICKNESS: This parameter is used to set how thick you wish your bottom layer to be. Clearly a
thicker bottom layer makes sticking to the bed easier. Set to 0.0 if you wish the bottom layer to have the same
thickness as all other layers. We advise you to set this parameter to 0.23.
INITIAL LAYER LINE WIDTH: This parameter measured in % is used to improve bed adhesion and provides extra
width to the extrusion on the first layer. We advise to set it to 120.
CUT OFF OBJECT BOTTOM: This parameter should be set when printing an object that doesn’t have a flat