QuickCurve: revisiting slightly non-planar 3D printing
Additive manufacturing builds physical objects by accumulating layers upon layers of solidified material. This process is typically done with horizontal planar layers. However, fused filament printers have the capability to extrude material along 3D curves. The idea of depositing out-of-plane, also...
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Main Authors | , , , |
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Format | Journal Article |
Language | English |
Published |
06.06.2024
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Subjects | |
Online Access | Get full text |
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Summary: | Additive manufacturing builds physical objects by accumulating layers upon
layers of solidified material. This process is typically done with horizontal
planar layers. However, fused filament printers have the capability to extrude
material along 3D curves. The idea of depositing out-of-plane, also known as
non-planar printing, has spawned a trend of research towards algorithms that
could generate non-planar deposition paths automatically from a 3D object. In
this paper we introduce a novel algorithm for this purpose. Our method
optimizes for a curved slicing surface. This surface is intersected with the
input model to extract non-planar layers, with the objective of accurately
reproducing the model top surfaces while avoiding collisions. Our formulation
leads to a simple and efficient approach that only requires solving for a
single least-square problem. Notably, it does not require a tetrahedralization
of the input or iterative solver passes, while being more general than simpler
approaches. We further explore how to orient the paths to follow the principal
curvatures of the surfaces, how to filter spurious tiny features damaging the
results, and how to achieve a good compromise of mixing planar and non-planar
strategies within the same part. We present a complete formulation and its
implementation, and demonstrate our method on a variety of 3D printed models. |
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DOI: | 10.48550/arxiv.2406.03966 |