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7. Feature description
• Printing space (W x D x H) (X, Y, Z) Single extruder approx. 200 x 290 x 185 mm; Dual extruder approx. 170 x 290 x 185 mm
• Play-free profile rail guides and ball-threaded drives for maximum precision
• Automatic printing plate measurement
• Heated printing plate of aluminium
• 1 high-precision extruder with replaceable printing nozzle and quick change function (RF2000 v2 single extruder)
• 2 high-precision extruder for 2-coloured printing with replaceable printing nozzle and quick change function (RF2000 v2 dual extruder)
• Extruder unit with quick-change function
• Integrated long-lived industrial mains unit
• Display and key pad for the device operation right at the device
• Control via a computer (USB) or stand-alone operation (with SD or SDHC card) possible
• Manual control of the printing parameters possible even during operation
• Extremely stable by aluminium/steel mechanics
• Suitable for all common standard roll filament types
• Breaking and abrasion-free cable guides across energy guide chains
8. Working principle of the 3D printer
For 3D print, first a file is needed that contains the three-dimensional data of the object to be printed (a common format of such a file is, e.g.,
a .stl-file).
This file can be produced with the corresponding software or with a 3D-scanner. There are also many printing files online that can be down
-
loaded to print an object as quickly as possible.
The actual printer software has the task to render the above three-dimensional file into a file that the printer can print. This is a file in which the
individual print layers, the temperature for the printing head or printing heads and printing plate, etc. are specified. The file has the extension
".gcode".
This G-CODE printing file is sent to the 3D printer either via the USB interface by the computer, or an SD card with the printing file is put into
the card reader and the 3D printer is used in standalone operation.
The 3D printer prints the file layer for layer according to the FFF (Fused Filament Fabrication) / FDM (Fused Deposition Modelling) procedure.
At the actual print, the filament material is transported from a filament roll to the print head (extruder). For the dual extruder and two-coloured
printing, this is done alterantingly with the two print heads.
In the extruder, the filament material is melted and then applied to the printing plate via a fine extruder nozzle layer by layer.
The heated printing plate moves in the Y and Z directions, the extruder unit moves in the X-direction. Thus, all prerequisites to produce a three-
dimensional object by horizontal application of the present layers are created.
A 3D printer is a highly complex device in which many parameters must be set depending on the printer, printed object and
filament material used.
Additionally, the adhesion of the printed object on the printing plate is influenced by printing plate temperature, filament
material, shape of the printed object and surface properties of the printing plate.
Ambience influences such as drafts, grease on the printing plate, etc. also play a role in the quality and adhesion of the
printed object.
For the above reasons, it is not possible to achieve high-quality print results at once and without previous experiments.
Change the adjustable parameters in small steps to achieve the best printing results for your application. The printing
examples enclosed on the SD card provide references, but must be refined for perfect results depending on the above
parameters.
