Section: New Results

Carving Large Cavities in Shapes for Fast Fused Deposition Modeling

Participants : Samuel Hornus, Sylvain Lefebvre.

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In 2016, we developed a technique for modeling a tight shield that protects the part being manufactured during 3D-printing with multi-material. In particular, the shield catches oozing material before it reaches the part  [19]. The technique was implemented on a voxel representation of the shape. We also demonstrated its use for the modeling of a large self-supported cavity inside the shape.

In this more recent work, we have extended the technique to iteratively carve large cavities in the shape in order to hollow a shape as much as possible while maintaining its ability to be fabricated without internal support. (see Figure 2) We developed a polygonal implementation of the technique that provides much higher quality results. The work was published at the 2018 Eurographics conference as a short paper [14]. An implementation is now available to the general public in our software IceSL.