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A 3D Model Created Using Block A More Complex 3D Model Created
Coding with Autodesk Fusion 360

From the Three-Dimensional Model to Print Instructions: The Slicing
Process

A 3D printer cannot directly interpret the three-dimensional model as generated
by any modelling software. To proceed with the 3D printing of an object, a kind of
"translation" of the 3D model into a file containing a list of print instructions
is necessary. This step, known as "slicing," also involves establishing the printing
"parameters," a set of geometric and physical dimensions that will affect the
quality and speed of printing. These parameters, in turn, are influenced by the
geometry itself and the characteristics of the material being used.

The slicing process is carried out using specific software, many of which are free
and easily accessible. In some cases, these tools are developed by the
manufacturers of 3D printers themselves. The descriptions and images below
specifically refer to the slicing software "Ultimaker Cura"
(https://ultimaker.com/software/ultimaker-cura/) but the entire process is
applicable to other similar filament 3D printing software like “PrusaSlicer”

(https://www.prusa3d.com/it/pagina/prusaslicer_424/ ), “IdeaMaker”
(https://www.ideamaker.io/download.html) etc.

The slicing procedure essentially involves these steps:
• Import the 3D model (.STL, .OBJ, etc.) into the slicing software.
• Make any necessary adjustments to the rotation and scaling of the model.
• Choose fundamental printing parameters: layer height (i.e., resolution),
print speed, working temperatures, enable or disable support structures,

Funded by the European Union. Views and opinions expressed are however those of the
author(s) only and do not necessarily reflect those of the European Union or the European
Education and Culture Executive Agency (EACEA). Neither the European Union nor EACEA can
be held responsible for them. Proposal number: 101087107.