Find answers to common questions to help you get started with 3D printing. If you can’t find the answer to your question – please contact us

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The machine settings for Cura are shown in the dialog below. These can be entered using the wizard or the machine settings dialog :


In addition the filament diameter should be set to 1.75mm on the Basic tab and the Nozzle Diameter set to 0.4mm on the Advanced Tab.

We recommend the following gcode for the start gcode :

G21        ;metric values
G90        ;absolute positioning
M82        ;set extruder to absolute mode
M107       ;start with the fan off
G28 X0 Y0  ;move X/Y to min endstops
G28 Z0     ;move Z to min endstops
G1 Z15.0 F{travel_speed} ;move the platform down 15mm
G92 E0                  ;zero the extruded length
G1 F200 E3              ;extrude 3mm of feed stock
G92 E0                  ;zero the extruded length again
G1 F{travel_speed}

and the following for the end gcode

M104 S0 ; turn off extruderM140 S0 ; turn off bed

G1 X-110 Y105 F7000 ;move X/Y to min/max

G1 Z160 ; move platform down

M84 ;steppers off

 The CURA software can be downloaded from http://software.ultimaker.com/

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Any 3D modelling software that is capable of producing STL files or files capable of being converted to STL files.

Many of these modelling softwares are available for free download.

Examples include OpenSCAD, TurboCad, Rhino, Sketchup, Solidworks, AutoCAD


Once you have a 3D model design, it needs to be converted into printing instructions for your THREEDY 3D printer. This is done by “slicing” the model into horizontal layers (slices) – so that the object can be built from the bottom up.

Slicing software takes STL files and generates G-code for your THREEDY 3D Printer. Suitable slicing software includes Cura, Slic3r, KISSlicer and all other RepRap 5d firmware compatible slicers eg Repetier, Skeinforge, Simplify3D

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STL (STereoLithography) is the file format of the 3D model produced on a computer that is used to create your 3D print. It is essentially a mathematical description of the 3D object. This file type will be created by the 3D modelling software you use for your design.


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G-Code is the language used to tell your THREEDY 3D printer how to print something. It gives the printer instructions on where to move, how fast to move and what path to move.


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