Discrete Computation for Additive Manufacturing

Retsin, Gilles; Garcia, Manuel Jimenez; Soler, Vicente

doi:10.2307/j.ctt1n7qkg7.28

Cited by 8 publications

(15 citation statements)

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“…Regarding the exterior design, the paper [19] develops a discrete design method for large 3D AM structures in plastic material using robots to reduce "stair effect" problems. This effect is noticed when layers with finite thickness and different contour are stacked each other.…”

Section: Engineering Fieldmentioning

confidence: 99%

“…As a matter of fact, geometry bitmapping is a good strategy because files are written in binary to indicate where drops of each material should be jetted. Authors [19] develop a methodology to optimize large scale 3D AM machines. The design fabrication method is based on discreetness, serializing toolpath and solving errors with low computational cost, firstly at small scale (one voxel and its neighbours) and then at larger scale, aiming to local optimization, avoiding global computations.…”

Section: Am Applicationmentioning

confidence: 99%

“…In [28], where a Virtual Manufacturing simulator is developed, FDM technology is used because it holds the largest market share and many research results are available in literature. Deposition of fused plastic is also used in large 3D objects as in [19] to produce a Panton chair with complex inner geometry (Fig. 13).…”

Section: Am Technologymentioning

confidence: 99%

“…way 3D objects. [19] exploits the GH capability to translate the discretized and optimized toolpath for the robot plastic extrusion system.…”

Section: Software Platformmentioning

confidence: 99%

“…Other important contributions to the field are given by [14,19]. The first one uses geometrical voxelization to access part degradation, based on the AM tool deposition path, while the second one uses cuboid elements as a computational unit to optimize and discretize the machine toolpath combining neighbour voxels depending on the stress amount detected using FEM analysis.…”

Section: Voxelization Usagementioning

confidence: 99%

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A systematic review of voxelization method in additive manufacturing

Bacciaglia

Ceruti

Liverani

2019

Mechanics & Industry

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Additive manufacturing (AM) is becoming an important alternative to traditional processes. AM technology shows several advantages in literature, and its use increases in aerospace, automotive and biomedicine. Time reduction in design-to-manufacturing cycle, customization, capability to generate complex shapes in one piece and ability to imitate low-weight bio-inspired shapes are the strength of designs based on AM. Due to its potentials, major progresses were done in AM, thanks to technology evolution and increased computational power. With regard to AM, voxelization can be defined as part’s discretization in hexahedral elements, as done with pixels in 2D image. Voxels are used to speed-up geometry and algebraic manipulation thanks to their inherent advantages. This paper analyses advantages and criticalities of AM and voxel manipulation through a systematic literature review methodology. The analyses are based upon the filtering of a huge amount of publications available in literature up to obtaining the most significant 25 studies published in the last 5 years. The study’s main result is the technology gap’s identification, i.e. where AM and voxelization still need improvements, thus providing the reader with suggestions about possible further studies. Computer elaboration power and voxel discretization algorithms are suggested being key issues in AM’s further development.

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Section: Engineering Fieldmentioning

confidence: 99%

Section: Am Applicationmentioning

confidence: 99%

Section: Am Technologymentioning

confidence: 99%

“…way 3D objects. [19] exploits the GH capability to translate the discretized and optimized toolpath for the robot plastic extrusion system.…”

Section: Software Platformmentioning

confidence: 99%

Section: Voxelization Usagementioning

confidence: 99%

See 3 more Smart Citations

A systematic review of voxelization method in additive manufacturing

Bacciaglia

Ceruti

Liverani

2019

Mechanics & Industry

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A Multi-resolution Design Methodology Based on Discrete Models

Guevara

Borunda

Krishnamurti

2019

Communications in Computer and Information Science

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The use of programming languages in design opens up unexplored and previously unworkable territories, mainly, in conventional architectural practice. In the 1990s, languages of continuity, smoothness and seamlessness dominated the architectural inquiry with the CNC milling machine as its manufacturing tool. Today's computational design and fabrication technology look at languages of synthesis of fragments or particles, with the 3D printer as its fabrication archetype. Fundamental to this idea is the concept of resolutionthe amount of information stored at any localized area. Construction of a shape is then based on multiple areas of resolution. This paper explores a novel design methodology that takes this concept of resolutions on discrete elements as a design driver for architectural practice. This research has been tested primarily through additive manufacturing techniques.

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