Publication detail
Comparison of the effects of multiaxis printing strategies on large-scale 3D printed surface quality, accuracy, and strength
KRČMA, M. PALOUŠEK, D.
English title
Comparison of the effects of multiaxis printing strategies on large-scale 3D printed surface quality, accuracy, and strength
Type
journal article in Web of Science
Language
en
Original abstract
The purpose of this study is to determine impact of several multi-axis 3D printing strategies on buildability, surface quality, accuracy, and strength of large scale single-walled object (printed in a so called vase mode). To achieve this goal, test objects were printed using four different printing strategies by an industrial robotic arm and a pellet-fed screw extruder. The strategies tested in this study are regular 3-axis deposition with planar layers, 5-axis deposition with planar layers, 3-axis deposition with nonplanar layers, and 5-axis deposition with nonplanar layers. Custom scripts for nonplanar slicing and for tilt control during multiaxis printing were developed to achieve these prints and are explained in this study. The results were evaluated using 3D scanning and mechanical testing, and surface accuracy, surface roughness, and layer adhesion strength were compared. The most important findings are (1) 5-axis motion alone does not improve the results of the printing; (2) while nonplanar printing can improve surface quality, its usability is geometry dependent; and (3) multi-axis nonplanar printing, even with partial tilt (30 degrees) can expand printability with enhanced quality to at least 75 degrees overhang angle. The future potential of these methods and the requirements to achieve them are discussed.
English abstract
The purpose of this study is to determine impact of several multi-axis 3D printing strategies on buildability, surface quality, accuracy, and strength of large scale single-walled object (printed in a so called vase mode). To achieve this goal, test objects were printed using four different printing strategies by an industrial robotic arm and a pellet-fed screw extruder. The strategies tested in this study are regular 3-axis deposition with planar layers, 5-axis deposition with planar layers, 3-axis deposition with nonplanar layers, and 5-axis deposition with nonplanar layers. Custom scripts for nonplanar slicing and for tilt control during multiaxis printing were developed to achieve these prints and are explained in this study. The results were evaluated using 3D scanning and mechanical testing, and surface accuracy, surface roughness, and layer adhesion strength were compared. The most important findings are (1) 5-axis motion alone does not improve the results of the printing; (2) while nonplanar printing can improve surface quality, its usability is geometry dependent; and (3) multi-axis nonplanar printing, even with partial tilt (30 degrees) can expand printability with enhanced quality to at least 75 degrees overhang angle. The future potential of these methods and the requirements to achieve them are discussed.
Keywords in English
Robotic; 3D printing; Additive manufacturing; Nonplanar; Multi-axis
Released
01.04.2022
Publisher
SPRINGER LONDON LTD
Location
LONDON
ISSN
1433-3015
Volume
119
Number
11-12
Pages from–to
7109–7120
Pages count
12
BIBTEX
@article{BUT176077,
author="Martin {Krčma} and David {Paloušek},
title="Comparison of the effects of multiaxis printing strategies on large-scale 3D printed surface quality, accuracy, and strength",
year="2022",
volume="119",
number="11-12",
month="April",
pages="7109--7120",
publisher="SPRINGER LONDON LTD",
address="LONDON",
issn="1433-3015"
}