Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

CurviSlicer: Slightly curved slicing for 3-axis printers

Abstract : Most additive manufacturing processes fabricate objects by stacking planar layers of solidified material. As a result, produced parts exhibit a so-called staircase effect, which results from sampling slanted surfaces with parallel planes. Using thinner slices reduces this effect, but it always remains visible where layers almost align with the input surfaces. In this research we exploit the ability of some additive manufacturing processes to deposit material slightly out of plane to dramatically reduce these artifacts. We focus in particular on the widespread Fused Filament Fabrication (FFF) technology, since most printers in this category can deposit along slightly curved paths, under deposition slope and thickness constraints. Our algorithm curves the layers, making them either follow the natural slope of the input surface or on the contrary, make them intersect the surfaces at a steeper angle thereby improving the sampling quality. Rather than directly computing curved layers, our algorithm optimizes for a deformation of the model which is then sliced with a standard planar approach. We demonstrate that this approach enables us to encode all fabrication constraints , including the guarantee of generating collision-free toolpaths, in a convex optimization that can be solved using a QP solver. We produce a variety of models and compare print quality between curved deposition and planar slicing.
Document type :
Journal articles
Complete list of metadata

Cited literature [46 references]  Display  Hide  Download
Contributor : Jimmy ETIENNE Connect in order to contact the contributor
Submitted on : Monday, May 6, 2019 - 11:21:12 AM
Last modification on : Thursday, January 27, 2022 - 3:08:35 AM


Explicit agreement for this submission




Jimmy Etienne, Nicolas Ray, Daniele Panozzo, Samuel Hornus, Charlie C.L. Wang, et al.. CurviSlicer: Slightly curved slicing for 3-axis printers. ACM Transactions on Graphics, Association for Computing Machinery, 2019, 38 (4), pp.1-11. ⟨10.1145/3306346.3323022⟩. ⟨hal-02120033⟩



Record views


Files downloads