Simplification of Shapes for Fabrication with V-Groove Milling Tools
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Date
2018
Authors
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Journal ISSN
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Publisher
The Eurographics Association
Abstract
We introduce here a pipeline for simplifying digital 3D shapes with the aim of fabricating them using 2D polygonal flat parts. Our method generates shapes that, once unfolded, can be fabricated with CNC milling machines using special tools called V-Grooves. These tools make V-shaped furrows at given angles depending on the shape of the used tool. Milling the edges of each flat facet simplifies the manual assembly that consists only in folding the facets at the desired angle between the adjacent facets. Our method generates simplified shapes where every dihedral angle between adjacent facets belongs to a restricted set, thus making the assembly process quicker and more straightforward. Firstly, our method automatically computes a simplification of the model, iterating local changes on a triangle mesh generated by applying the Marching Cubes algorithm on the original mesh. The user performs a second manual simplification using a tool that removes spurious facets. Finally, we use a simple unfolding algorithm which flattens the polygonal facets onto the 2D plane, so that a CNC milling machine can fabricate it with a sheet of rigid material.
Description
@inproceedings{10.2312:stag.20181293,
booktitle = {Smart Tools and Apps for Graphics - Eurographics Italian Chapter Conference},
editor = {Livesu, Marco and Pintore, Gianni and Signoroni, Alberto},
title = {{Simplification of Shapes for Fabrication with V-Groove Milling Tools}},
author = {Muntoni, A. and Scalas, A. and Nuvoli, S. and Scateni, R.},
year = {2018},
publisher = {The Eurographics Association},
ISSN = {2617-4855},
ISBN = {978-3-03868-075-8},
DOI = {10.2312/stag.20181293}
}