voronoi

I'm very interested in the geometric structure of some tissues, like the osseous; which present a Voronoi tessellation in order to obtain the highest efficiency in relation to the amount of material used and without compromising structural integrity, also very important is to respond as well to specific physiological needs.

So far the tessellation has been done randomly, and by increasing the density accordingly to the area where the load is applied and its intensity. In the future will be included a more appropriate alignment of cells and different wall thicknesses, all this accordingly to specific physiological requirements.

Some examples of this process, applied to different products, have been hypothesised.

One of them, a sort of bookcase, was tested with a FEA software, different cell-wall thicknesses and cell densities helped to understand ideal configurations.

I'm working now in a physical, non-destructive experiment with ABS milled samples, here an image of the CAD being created.

Here a detail of the samples already manufactured.

Milling the samples was a very long process and created large quantities of waste, although this can be recycled, this type of structures are thought to be much more efficient with 3D printed technology. Therefore one sample has been produced in ABS with a FDM machine, and will be tested under the same conditions. In the next image the milled (darker) and 3D printed (lighter) samples.

Together with the samples, a first 3D printed application of this process will be manufactured. This particular object is generated by a double curvature surface with a smooth continuity, all cells are extruded relating to the normal of the surface, being therefore "conical", a volume impossible to create by traditional techniques.

This research is related as well to the development of the vehicle platform for 'MY' project, here an example of the work in progress.