Realization of the physical object through 3D printing requires a path of design for print jobs, which must take into account:
- Material analysis (each material has specific characteristics, which can determine targeted design choices);
- The technology used (which can influence the geometric shape and in its dimensioning);
- The purpose and the physical and mechanical requirements (for example, the roughness or the required mechanical anisotropy);
- Finishing phases
This lead to the industrialization of the part production process, which combines the qualitative requirements of the product with the best efficiency of industrial production.
In particular, the design of 3D files and their printing job consist of:
- Digital design and printing job programming, with the definition of work cycle productivity (positioning evaluation and optimization of the number of pieces in the machine’s printing area) and the 3D design preparation with respect to finishing machining (interfaces for CNC);
- slicing definition with an eye to a correct definition of the constructive layers, so that it is possible to achieve the best behavior to stresses and solicitations, minimizing process-induced stresses;
- support creation, aimed to the qualitative realization of the part (grant the geometry and shapes definition, especially in case of curved or angled parts) while keeping in mind the material characteristics and the following stages of support removal, post-process and finishing.