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Fabrication Process

VOXELJET – TOPOLOGY OPTIMIZATION LEADS TO A PRIZE-WINNING CAST PART

The project began with the need to significantly increase the rigidity of the Wheel Upright without changing the weight or materials used. With the help of cutting-edge simulation tools and using the full range of structural design freedom offered by 3D printing technology, the partners produced a Wheel Upright that is up to five times more rigid than its predecessor. Kevin Smith, Sales Director with voxeljet UK, describes the benefits as follows: “The design freedom of additive manufacturing processes, combined with simulation, allows us to come up with a new generation of designs that overcome the earlier conventional design limitations.” It was voxeljet’s 3D printing process that made it possible to implement cast part geometries with this level of complexity. “Because of this, the CMF jurors had a hard time at first believing that this complex Wheel Upright was an aluminum investment-cast part,” Smith adds. This project is an impressive demonstration of the potential that exists with regard to boosting performance and/or reducing weight.

http://www.foundry-planet.com/news/corporate-news/detail-view/voxeljet-topology-optimization-leads-to-a-prize-winning-cast-part/

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NATURALCOLUMN

The Project is the worlds first ever materialized architectural free-form column, that is equipped with an internal three-dimensionally graded heterogenous microstructure, that was derived through a structural simulation process.

The Project therefore outlines a novel digital workflow for the design, simulation and fabrication of large-scale additively manufactured architectural elements.

The iterative form-finding method of topology optimization was utilized to create the fittest shape for a given load case, with the constraint of minimized material usage.
The resulting structure shares similarities with natural systems like bones or trees.

Although those biological structures were already well investigated by several interdisciplinary research clusters, that included architects and engineers in the last century, they were until the recent emergence of full-scale 3D printing technology, unfeasible to realize due to the absence of a adequate manufacturing method.

http://www.nowlab.de/THENATURALCOLUMN

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Fabrication Process

shape and form

about

shape and form is a small design group based in munich. shape and form specializes in customized and exclusive articles, inspired by nature, shaped with innovative 3d software and produced by latest 3d printing technology. articles are produced in limited editions not exceeding twelve pieces per design. all products can be specially tailored to individual needs and desire.

philosophy

“there is a difference between ‘shape’ and ‘form’. we use the words loosely to mean the same thing, the image of what we see or look at; but even with the words ‘see’ and ‘look’ there differences. looking infers a desire to study and make critical comment; to see is to receive an image. the outward contours of something make up shape but beyond that received image an imperative of geometry and pattern, mixed in with instinct and inspiration, seems to hammer out ‘form’. there is this intangible concept underlying form, more to do with creativity than visualisation. trapped within its own outward layer, shape has no depth, but form has shape and depth: and structure in its organisation and power of synthesis, allies itself with form.

http://shapeandform.de

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Fabrication Process

NOWlab unveils aluminum stool formed from a 3D printed algorithmic told

the ‘T1000′ stool is a result of NOWlab’s on-going research, with a scope on emerging computational design methods, under the utilization of novel cutting edge manufacturing technology. for the realization of the project’s founding partners jörg petri and daniel büning created a new hybrid process chain consisting out of digital generative form-finding, large-format additive manufacturing and traditional foundry work.

http://www.designboom.com/technology/nowlab-t1000-aluminum-stool-3d-printed-algorithmic-mold-11-16-2015/

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Fabrication Process

Better Buy in 2014: Voxeljet AG (ADR) vs. ExOne Co

On the surface, ExOne (NASDAQ: XONE) and voxeljet (NYSE: VJET) are very similar 3-D printing companies. Both compete in the industrial segment, use a similar 3-D printing technology, and boast some of the largest print beds in the world.

Where these two companies differ boils down to the materials they can print with. Voxeljet only offers 3-D printing in two different types of plastic and one type of sand. ExOne, on the other hand, offers 3-D printing in two different types of sand, five types of metals with seven different finishes, and a soda lime glass that’s available in three different finishes.

This greater range of materials gives ExOne a competitive advantage over voxeljet, 3-D printing analyst Steve Heller argues. With more materials, ExOne can serve a greater base of customers and has a larger business opportunity than voxeljet. Check out the video below to get the full story.

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Fabrication Process

UMWELTFREUNDLICHER 3D-DRUCK

Auf dem Weg zu nachhaltigen, energie- und ressourceneffizienten Prozessen rücken die anorganischen Bindemittel in der Gießereibranche immer stärker in den Mittelpunkt von strategischen Entscheidungen.
voxeljet und Hüttenes-Albertus ist es erstmalig gelungen, anorganisch gebundene Formen und Kerne werkzeuglos im 3D-Druckverfahren herzustellen.
Damit ist das umweltfreundliche 3D-Drucken ein weiterer, konsequenter Schritt zu einem vollständigen Produktionsprozess ohne Umweltbelastung.

http://www.huettenes-albertus.com/produkte/anorganische_binder/rapid_prototyping/index.html

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Fabrication Process

Dreidimensionale drucktechnik
EP 0644809 B1

Verfahren zum Herstellen eines Bauteils, das die folgenden Schritte umfasst:

  1. Aufbringen einer vorausgewählten Menge eines Pulvermaterials (74) in einem begrenzten Bereich (14, 42, 72, 112), wobei das Pulvermaterial verstärkt ist, um beim Auftragen des Bindemittelmaterials auf es die Bildung von Vertiefungen und Spritzern zu verhindern,
  2. Auftragen eines Bindemittelmaterials auf ausgewählte Bereiche (16, 44) der genannten Pulvermaterialschicht, wodurch bewirkt wird, dass die genannte Pulvermaterialschicht an den genannten ausgewählten Bereichen gebunden wird,
  3. Wiederholen der Schritte 1 und 2 eine ausgewählte Anzahl von Malen, um eine ausgewählte Anzahl von aufeinander folgenden Schichten zu produzieren, wobei das genannte Bindemittelmaterial bewirkt, dass die genannten aufeinander folgenden Schichten aneinander gebunden werden,
  4. Entfernen von nicht gebundenem (17) Pulvermaterial, das sich nicht an einer oder mehreren ausgewählten Regionen (16, 44) befindet, um das Bauteil (40, 141) bereitzustellen.

https://www.google.ch/patents/EP0644809B1

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Fabrication Process

History of sand printing

Digital part materialization for the sand printing business began in 1999 when a group of engineers at a start-up company called Generis in Augsburg, Germany developed the prototype 3D printer for making sand casting molds and cores. The first printing system was sold to BMW AG in 2001. Generis was focused on the development of machines and processes for sand and investment casting before it was divided in 2003 into ProMetal RCT for sand and Voxeljet for investment casting. As a division first of Extrude Hone Corporation and then ExOne, ProMetal RCT developed a worldwide market for sand printing with dozens of machine installations. A smaller printer was developed in 2004 for printing with different materials and binders. With the introduction of the S-Max in 2010, ExOne released the largest 3D sand printer in the world, redesigned for production flexibility and efficiency. The development and production facility in Augsburg, Germany now operates as ExOne GmbH. The ExOne® 3D sand printing business has grown from a handful of engineers to a worldwide team with operation and support facilities in Germany, the United States and Japan. ExOne is the global leader in sand printing systems.

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Fabrication Process

Print Concrete

In collaboration with Voxeljet and the University of Kassel, G.tecz developed the worldwide first printable pure water and cement based 3D Printer Concrete. The technology is unique and is optimized for the printers of voxeljet.
The cement bonded material allows you to print concrete objects in a never before seen quality and with endless geometry and application options.

http://www.gtecz.com/innovations/3d-printer-concrete/

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Fabrication Process

The Top 10 Biggest 3D Printers

Most people generally associate 3D printing with small size objects, the truth seems to be quite different. In fact, there seem to be two diametrically different concurrent trends in the industry. One is towards printing with the finest resolutions and the other is aimed at printing the largest sizes possible.