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Section: Software and Platforms

IceSL

Participants : Jérémie Dumas, Jean Hergel, Sylvain Lefebvre.

In the new software IceSL , we propose to exploit recent advances in GPU and Computer Graphics to accelerate the slicing process of objects modelled via a CSG  ( Constructive Solid Geometry) language. Our target are open source low cost fused deposition modeling printers such as RepRaps.

Our approach first inputs a CSG description of a scene which can be composed of both meshes and analytic primitives. During display and slicing the CSG model is converted on the fly into an intermediate representation enabling fast processing on the GPU. Slices can be quickly extracted, and the tool path is prepared through image erosion. The interactive preview of the final geometry uses the exact same code path as the slicer, providing an immediate, accurate visual feedback.

IceSL is the recipient software for our ERC research project “ShapeForge”, led by Sylvain Lefebvre.

Figure 1. Left. A two-colored vase is modeled in IceSL. Right. An early printed result.
IMG/IceSL-modeled-trivase.jpg IMG/IceSL-printed-trivase.jpg