Robox 3d printer, Руководство пользователя

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8.0 Supplementary Information
Nozzle Height
On Robox® this is used to describe the difference between the
mechanically determined surface position (the bed) and the
actual position.
Nozzle Opening
On Robox® this describes the point at which plastic begins to
flow from the nozzle, based on the position of the needle valve.
Nylon
Nylon or polyamide (PA) is an engineering grade thermoplastic
used in a variety of applications. It is extremely tough and
durable, making very strong functional parts.
.OBJ
Abbreviation of OBJect - a file format used to define a 3D
model similar to .STL, but an .OBJ file can contain multiple
models and also colour/texture data when used in conjunction
with a .MTL (material) file.
Ooze
This is a phenomenon experienced on many other FFF printers,
where molten plastic continues to flow from the nozzle when
the extruder has stopped. It is conventionally compensated
for using a ‘retract’, where the filament is pulled back to ‘suck’
molten material away from the tip of the nozzle. Robox® uses a
needle valve system to stop the extrusion as required at the tip
of the nozzle, resulting in minimal ooze.
Overhang
Describes an unsupported area of a 3D printed model. When
automatic support generation is enabled, an angle threshold is
used to define where support is generated - see section 5.5.8.
Parametric
(Adjustable in all dimensions. A parametric model is one that
can be resized and or distorted to suit the user's needs. In CAD
software, you can resize individual features (e.g. holes, ribs etc.),
as opposed to a mesh (surface model), which is more difficult
to adjust.
PEI
Also known by the trade name Ultem® - this is a high
performance engineering thermoplastic called Polyetherimide.
The bed surface of Robox® is constructed from it, as it bonds
particularly well to molten ABS and PLA - important for
bonding the first layer to the bed.
Perimeter
In FFF used to describe an extrusion path that runs around the
perimeter of the object. e.g. number of perimeters sets the wall
thickness of the object.
PLA
Polylactic Acid. A biodegradable thermoplastic polymer
manufactured from corn starch which is frequently used as a
3D printer material.