Curvislicer: Slightly curved slicing for 3-axis printers

Jimmy Etienne, Nicolas Ray, Daniele Panozzo, Samuel Hornus, Charlie C.L. Wang, Jonàs Martínez, Sara McMains, Marc Alexa, Brian Wyvill, Sylvain Lefebvre

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Article number81
JournalACM Transactions on Graphics
Volume38
Issue number4
DOIs
StatePublished - Jul 2019

Fingerprint

Printers (computer)
3D printers
Deposits
Sampling
Fabrication
Convex optimization

Keywords

  • Additive manufacturing
  • Curved slicing

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design

Cite this

Etienne, J., Ray, N., Panozzo, D., Hornus, S., Wang, C. C. L., Martínez, J., ... Lefebvre, S. (2019). Curvislicer: Slightly curved slicing for 3-axis printers. ACM Transactions on Graphics, 38(4), [81]. https://doi.org/10.1145/3306346.3323022

Curvislicer : Slightly curved slicing for 3-axis printers. / Etienne, Jimmy; Ray, Nicolas; Panozzo, Daniele; Hornus, Samuel; Wang, Charlie C.L.; Martínez, Jonàs; McMains, Sara; Alexa, Marc; Wyvill, Brian; Lefebvre, Sylvain.

In: ACM Transactions on Graphics, Vol. 38, No. 4, 81, 07.2019.

Research output: Contribution to journalArticle

Etienne, J, Ray, N, Panozzo, D, Hornus, S, Wang, CCL, Martínez, J, McMains, S, Alexa, M, Wyvill, B & Lefebvre, S 2019, 'Curvislicer: Slightly curved slicing for 3-axis printers', ACM Transactions on Graphics, vol. 38, no. 4, 81. https://doi.org/10.1145/3306346.3323022
Etienne, Jimmy ; Ray, Nicolas ; Panozzo, Daniele ; Hornus, Samuel ; Wang, Charlie C.L. ; Martínez, Jonàs ; McMains, Sara ; Alexa, Marc ; Wyvill, Brian ; Lefebvre, Sylvain. / Curvislicer : Slightly curved slicing for 3-axis printers. In: ACM Transactions on Graphics. 2019 ; Vol. 38, No. 4.
@article{ccca77e784d141739ee6d159b7da19f9,
title = "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.",
keywords = "Additive manufacturing, Curved slicing",
author = "Jimmy Etienne and Nicolas Ray and Daniele Panozzo and Samuel Hornus and Wang, {Charlie C.L.} and Jon{\`a}s Mart{\'i}nez and Sara McMains and Marc Alexa and Brian Wyvill and Sylvain Lefebvre",
year = "2019",
month = "7",
doi = "10.1145/3306346.3323022",
language = "English (US)",
volume = "38",
journal = "ACM Transactions on Graphics",
issn = "0730-0301",
publisher = "Association for Computing Machinery (ACM)",
number = "4",

}

TY - JOUR

T1 - Curvislicer

T2 - Slightly curved slicing for 3-axis printers

AU - Etienne, Jimmy

AU - Ray, Nicolas

AU - Panozzo, Daniele

AU - Hornus, Samuel

AU - Wang, Charlie C.L.

AU - Martínez, Jonàs

AU - McMains, Sara

AU - Alexa, Marc

AU - Wyvill, Brian

AU - Lefebvre, Sylvain

PY - 2019/7

Y1 - 2019/7

N2 - 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.

AB - 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.

KW - Additive manufacturing

KW - Curved slicing

UR - http://www.scopus.com/inward/record.url?scp=85073886834&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85073886834&partnerID=8YFLogxK

U2 - 10.1145/3306346.3323022

DO - 10.1145/3306346.3323022

M3 - Article

AN - SCOPUS:85073886834

VL - 38

JO - ACM Transactions on Graphics

JF - ACM Transactions on Graphics

SN - 0730-0301

IS - 4

M1 - 81

ER -