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Concre3DLab releases VoxelPrint Grasshopper plug-in for concrete 3D printing

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Concre3DLab, a research institute embedded within the Department of Structural Engineering (Ghent University) just released VoxelPrint, a new Grasshopper plug-in for voxel-based numerical simulation of concrete printing.

The software component can voxelize any three-dimensional shape into a (Giga) set of identical finite elements and produce ready-to-use Input files for simulation in Abaqus. The main contribution of this work is providing an extensive, yet easy-to-use plugin to be used by both non-experts (e.g. architects and designers that are already familiar with the parametric toolbox that is provided by Grasshopper) and more advanced users, that can further experiment with the broad range of input parameters in an attempt to optimize their 3D print design.

The core component uses state-of-the-art numerical methods for simulation of concrete printing. According to the authors, its general implementation is based on an approach first presented by Wolfs, Bos, and Salet, but also incorporates the newest extensions proposed by Vantyghem, Ooms, and De Corte. VoxelPrint is freely available for educational and academic use and can be downloaded from this link.

VoxelPrint

Concre3DLab focuses on the 3D printing of concrete structures. The research areas focus on different aspects of 3D printing of concrete structures. Besides VoxelPrint, the team is also at work on CobraPrinta Grasshopper plug-in that allows for the creation of finite element models without any prior knowledge of numerical modeling required.

In contrast to VoxelPrint, a structured mesh is generated by sweeping a cross-section of the printed concrete layer along the print path. The plug-in was evaluated and validated based on experimental and numerical results from literature. The main advantage of CobraPrint is the possibility to add contact-based interactions between layers. Also, a dynamic analysis is used with numerical damping which smoothens the analysis. A user subroutine URDFIL can be added to monitor the deformations of the model and stop the analysis when a predefined threshold is reached.

 

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Davide Sher

Since 2002, Davide has built up extensive experience as a technology journalist, market analyst and consultant for the additive manufacturing industry. Born in Milan, Italy, he spent 12 years in the United States, where he completed his studies at SUNY USB. As a journalist covering the tech and videogame industry for over 10 years, he began covering the AM industry in 2013, first as an international journalist and subsequently as a market analyst, focusing on the additive manufacturing industry and relative vertical markets. In 2016 he co-founded London-based VoxelMatters. Today the company publishes the leading news and insights websites VoxelMatters.com and Replicatore.it, as well as VoxelMatters Directory, the largest global directory of companies in the additive manufacturing industry.

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