viscotec Archives - Perfect 3D Printing Filament

ViscoTec’s Latest Two-Component Printhead 3D Prints Polyurethanes, Silicone and Epoxies With More Precision

Germany company ViscoTec makes systems that are required for conveying, dosing, applying, filling, and emptying medium to high-viscosity fluids. Based in Bavaria with subsidiaries in China, India, Singapore, and the US, ViscoTec first began working with 3D printing several years ago when it introduced a paste extruder, followed by its Fluid Dosing and Deposition (FDD) Starter Kit.

In 2017, the award-winning company launched the first of its innovative printheads, followed the next year by its vipro-HEAD with optional heating function for viscous fluids, and then the vipro-HEAD 3/3 and 5/5 for 3D printing two-component viscous fluids and pastes. Now ViscoTec is launching its latest two-component vipro-HEAD, which allows both of its motors to be directly controlled through a 3D printer – making it easy to precisely mix and print two-component viscous fluids and pastes.

3D printing of silicone midsoles with ViscoTec printhead.

Two-component 3D printing is a big deal, because it can really expand the scope of possible 3D printing applications. For instance, silicone can be 3D printed in this way, which makes it possible to be used in the medical field and for fabricating things like shoe soles. But the latest version of the vipro-HEAD is even more advanced, not just because of its two-component 3D printing ability, but because it’s supported by pressure sensors for more efficient and reliable printing.

The printhead’s main components are the rotor and stator, which make sure that the two components continuously and uniformly deliver material from the suction point all the way to the outlet, no matter how small the quantity and layer height. This volumetric conveying principle means that the vipro-HEAD can guarantee, as the company puts it, “linearity of volume and speed.” Regardless of their overall viscosity, liquids and pastes can be processed through the two-component printhead, making it the perfect choice for materials like acrylates, polyurethanes, silicone, and epoxy or polyester resins.

Each of the two material components can be fed individually, in the exact dosage, into the static mixer through a flow-optimized channel. Customers can choose a specific static mixer, which can be attached to the printhead, based on their materials and the degree to which they need to be mixed together.

High-quality sensors are used to guarantee quality prints by monitoring outlet pressures of each component, which is obviously extremely important when it comes to the repeatable part quality that’s necessary in series production. These sensors, along with the vipro-HEAD’s use of separately controllable drives, are major improvements, in addition to an optional venting screw, which allows excess air to vent quickly. The sensors, which come with detachable 5 m long motor cables, also help in avoiding quality differences or process delays that come from hardened mixers, which helps protect both the stator and the rotor from being damaged.

Because both components enter the stator through a separate inlet, and the materials can be individually dosed, the vipro-HEAD can achieve high-quality, reliable 3D printing of liquid two-part components that have excellent chemical resistance and mechanical properties. In addition, ViscoTec’s pressure-tight, self-sealing displacement system is used in both sizes of the vipro-HEAD, ensures controlled rotary movement of the rotor, which conveys the components through displacement in the stator. This means that the material is returned through reversing the rotation direction, which ensures high quality and a controlled material thread break.

Because the new vipro-HEAD can help 3D print components that are able to withstand chemical and mechanical stresses, ViscoTec can provide companies in the aerospace, automotive, electronics, and medical fields with an optimal solution for two-component 3D printing of viscous fluids and pastes.

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[Images: ViscoTec]

3D Printing News Briefs: November 17, 2018

Continuing with the week’s second edition of 3D Printing News Briefs, or rather formnext 2018 News Briefs, we’ve got more announcements coming from the huge trade fair, which just ended today in Frankfurt. 3D Systems introduced two new 3D printers and a new material, while Solvay showcased its two new medical grade filaments. ViscoTec revealed its new two-component print head, and Additive Industries announced a partnership with Air Liquide on the show floor. Finally, Honeywell FM&T engineers are using topology optimization to shorten the design process at the DOE’s Kansas City National Security Campus.

3D Systems Showcases Two New 3D Printers

DMP Factory 350

This week at formnext, 3D printing leader 3D Systems announced two additions to its DMP metal 3D printing platform, along with a new aluminum alloy material. This platform allows customers to scale from the new DMP Flex 350 – successor to the ProX DMP 320 – all the way up to the new DMP Factory 350 as their production needs shift. These 3D printers were built to provide repeatable, robust metal parts production 24/7. The $575,000 Flex 350 offers an improved print productivity of 15% over previous models, comes with improved gas flow technology for uniform part quality, and allows for more efficient production of very dense, pure metal parts. The $763,000 Factory 250 combines all of these advantages and features with a little something extra – integrated powder management. An in-unit viewing panel allows for a visual inspection of the ultrasonic sieve, and also includes real-time process monitoring. In addition to its two new DMP 3D printers, 3D Systems also introduced a new aluminum alloy material, LaserForm AlSi7Mg0.6 (A), which offers electrical ductility, corrosion resistance, and high-thermal conductivity.

“At Formnext 2017, I announced 3D Systems’ intent to bring 3D printing to the factory floor with a new generation of additive manufacturing solutions. Today I am happy to report that over the last year we have brought to market an unrivalled series of plastic and metal 3D printers, materials and software that are optimizing workflows, enabling new design innovations, and reducing costs,” said Vyomesh Joshi, the President and CEO of 3D Systems. “The new innovations we are announcing today – DMP Flex 350, DMP Factory 350, and LaserForm material– further expand 3D System’s customer-first, solution approach to drive the transformation of manufacturing.”

The DMP Flex 350 and DMP Factory 350 should be available in late Q4 2018.

Solvay Introduces New Medical-Grade Filaments

Global specialty polymer supplier Solvay was also at formnext this week to launch new products. The company introduced three new additions to its high-performance 3D printing filament portfolio – KetaSpire PEEK (NT1 HC), a 10% carbon fiber-reinforced KetaSpire (CF10 HC), and Radel PPSU (NT1 HC), which are Solvay’s first medical-grade materials for limited contact applications in the healthcare industry. The KetaSpire PEEK filaments enable high part density, achieve great printed layer fusion, and provide excellent part strength, along the z-axis in particular. Radel PPSU delivers the same exceptional fusion, and also has toughness, transparency, and high elongation. These three new grades are available immediately in both North America and Europe through Solvay’s e-commerce platform.

“The healthcare industry is quickly emerging as a leading market to benefit from AM technology which makes customized parts for single use or low volumes possible. However, there is still a very limited choice of high-performance filaments that meet the stringent regulatory requirements in healthcare and this is the gap we want to close with our new selection of medical grade products,” said Christophe Schramm, Additive Manufacturing Business Manager at Solvay’s Specialty Polymers global business unit.

VisctoTec Launches New Two-Component Print Head

This spring, Germany-based ViscoTec, which is well known for its innovative 3D print heads, introduced the vipro-HEAD, a print head with an optional heating function for viscous fluids. The vipro-HEAD 3 and vipro-HEAD 5 allow the company’s 3D printing customers to process viscous fluids and pastes, and now ViscoTec has delivered again. At formnext this week, the company launched its new two-component print head, vipro-HEAD 3/3 and 5/5, which allows for the 3D printing of two-component viscous fluids and pastes.

The print head, which comes in two sizes, has parallel, independently running motors, which receive direct signals from the 3D printer itself. Bleeding screws can be adapted to the vipro-HEAD 3/3 and 5/5 for venting during start-up, and optional integrated pressure sensors can monitor the output pressure at the static mixer, so dosing is automatically stopped if any pressure fluctuations occur so the rotor and stator aren’t damaged. With ViscoTec’s new print head, nearly all two-component viscous fluids and pastes can be dispensed continuously and gently.

Additive Industries and Air Liquide Announce Partnership

The last piece of formnext 2018 news to share with you today is the newly announced partnership for industrial 3D printing between France-based Air Liquide and Netherlands company Additive Industries. The two have long enjoyed a working relationship, and decided to increase this into a professional partnership, in order to develop a dedicated infrastructure for gasses. Air Liquide will add its solutions for supplying and storing shielding gasses, and an infrastructure blueprint for Additive Industries’ MetalFAB1 3D printer will allow customers in demanding markets to increase the safety, quality, and post-processing of 3D printing.

“On our continuous quest to improve the performance of our systems while offering our users a fully integrated solution, we have identified the gas infrastructure for argon and nitrogen as an often overlooked but important piece of the puzzle,” said Daan Kersten, CEO of Additive Industries. “Because of our partnership with Air Liquide, we now can offer a blueprint to our customers to guarantee a reliable gas storage and supply as well as a higher level of safety, our number one priority.”

Topology Optimization Used by Honeywell FM&T Engineers

Honeywell FM&T, an engineering, manufacturing and sourcing enterprise that’s part of the aerospace company Honeywell, manages and operates the Kansas City National Security Campus for the US Department of Energy. It used to take the engineers months to design and produce materials to use for tooling and testing purposes. But Honeywell FM&T is now saving time by using digital manufacturing technology, which allows the engineers to bring their ideas to fruition in days, instead of months.

Topology optimization, or TO, shortens the normal design process by creating a prototype based on the functional and physical requirements, and then simulating production with it. 3D products designed with TO are less expensive, more lightweight, and stronger, and the Honeywell FM&T team recently used the technology to redesign a part that would meet structural requirements, but also weighs 46% less as well.

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3D Printing News Sliced, Formnext 2018, ExOne, Stratasys, DyeMansion, America Makes, DSM

This edition of Sliced, the 3D Printing Industry news digest, focuses on the latest developments from the international additive manufacturing show Formnext in Frankfurt, Germany. Innovations in additive manufacturing hardware With Formnext in full swing, a plethora of 3D printing hardware has been showcased for the first time. WASP, the Italian manufacturer behind DeltaWASP 3D […]

3D Printing News Briefs: July 27, 2018

We’ve got plenty of awards and other business news for you today in 3D Printing News Briefs. Sinterit and ViscoTec each received awards for their technology, while Arkema announced that it is opening a 3D Printing Center of Excellence at its Pennsylvania facility. Vectary and Sketchfab are integrating, and Xometry is now offering SLA 3D printing. Finally, OPEN MIND Technologies has introduced its latest hyperMILL CAM software.

Sinterit Lisa Receives Award from All3DP

Sinterit, one of the fastest growing manufacturers of SLS 3D printers, just received the “Best Desktop SLS 3D Printer Summer 2018” award for its Lisa 3D printer by All3DP. The award shows that the company is moving in the right direction, and confirms that the Lisa is the perfect choice for 3D printing professionals looking to upgrade to SLS technology without breaking the bank. Even better for Sinterit: the award was announced in the final week of a pre-order period for its upgraded Lisa model, which will feature better hardware, bigger 3D prints, and easier maintenance.

“All3DP is happy to present the Sinterit Lisa with the award for Best Desktop SLS 3D Printer on the market. We recognize the Sinterit team for their tremendous work in making SLS 3D printing technology more affordable and accessible,” said Tyler Koslow, Editor at All3DP. “Additionally, their recent update to the Sinterit Lisa and development of the new Sinterit Lisa 2 PRO suggests that they will remain a market leader for a long time.”

ViscoTec Awarded Special Title Two Years Running

Georg Senftl (holding certificate) and Martin Stadler (holding lion) accepted the award on behalf of all ViscoTec employees.

For the second year in a row, German company ViscoTec, which specializes in pump and dose technology and has 3D printing viscous liquid products for silicone and other materials was awarded the “Bayern’s Best 50” title. For 17 years, the Bavarian Ministry of Economic Affairs has honored the 50 most dynamic, medium-sized companies in Bavaria, and the jury considers criteria such as number of employees, turnover, and social and economic contributions. ViscoTec, and the other 49 winning companies were personally awarded the title, a certificate, and a Bavarian porcelain lion by Bavaria’s Minister of Economic Affairs, Energy and Technology Franz Josef Pschierer at a recent event in Schleißheim Castle.

“Our employees all over the world actively help us to be such a successful company every day and that we will continue to develop very well in the future. Special thanks also go to our partners and customers. Their partnership with ViscoTec is constantly driving us forward. This motivates us not to stand still, to open up new possibilities and to find solutions for the daily challenges,” said Georg Senftl, Commercial Director of ViscoTec Pumpen- u. Dosiertechnik GmbH. “Last but not least, the innovative climate in the Inn-Salzach region contributes to the continuous development of companies like ViscoTec.”

Arkema to Open 3D Printing Center of Excellence

3D Printers and Post-Processing Machines for UV-Cured Resins at Arkema Center for Excellence.

This Monday, July 30th, speciality chemical and advanced materials developer Arkema will be holding the grand opening for its new 3D Printing Center of Excellence. The center will be located at the Exton, Pennsylvania facility of its Sartomer subsidiary, which designs engineered resins for UV-curable additive manufacturing under its N3xtDimension brand. The 3D Printing Center of Excellence will work to advance 3D printing resins technology and be home to most UV-based 3D printing technologies, such as Digital Light Processing (DLP), stereolithography (SLA), and HP’s Multi Jet Fusion (MJF). It will offer a collaborative space for developing custom resins, and complete the company’s worldwide R&D network, which is dedicated to developing advanced 3D printing materials.

“Sartomer is a historic partner for 3D printing pioneers. We’re launching the 3D Printing Center of Excellence to deepen our support of the visionaries working to develop innovative 3D printed materials,” said Sumeet Jain, Global Director, 3D Printing at Sartomer.

Vectary Integrates Sketchfab

Online 3D design tool Vectary is giving its users access to thousands of new 3D models, as it has now integrated Sketchfab, the world’s largest platform for interactive 3D content. Vectary users can connect to the Sketchfab library and import hundreds of thousands of 3D models with one click, as well as export, publish, and even sell their own 3D work on Sketchfab. Vectary CEO Michal Koor, who co-founded the tool in 2014 with Pavol Sovis said, “Easily importing Sketchfab 3D models in the Vectary 3D tool can be a great way to create design concepts and bring more inspiration to their work. Exporting their Vectary models to Sketchfab gets them exposure to a larger audience, which can mean an increased customer base and new income possibilities by selling their work on one of the best 3D marketplaces available.”

Xometry Adds SLA 3D Printing to List of Services

3D printing service provider Xometry has added stereolithography (SLA) 3D printing to the list of 3D printing processes it provides. Versatile SLA technology offers higher resolution 3D printing, which will allow Xometry’s customers to achieve prints with good surface finish and fine detail – perfect for production parts and prototypes. The technology also enables you to print large products and parts and can create complex parts, to meet tolerances of +/- 0.004” or +/- 0.001” per inch, in a single operation.

Xometry also offers plenty of SLA-friendly materials, such as the Accura and Somos brands. Try it out today – upload your 3D CAD file to Xometry now to get an instant SLA quote.

New Version of hyperMILL CAM Software Released

3D Z-Level Shape Finishing

Germany CAD/CAM software solutions develop OPEN MIND Technologies AG has released the latest version of its advanced CAM software, hyperMILL 2018.2, which provides more machining efficiency and several new enhancements and features. 3D Z-level Shape Finishing, available in the hyperCAD -S module, now comes with automatic face extension to automatically extend selected milling surfaces during CAM programming, and can now also support conical barrel cutters.

This version also provides a “V sketch” command, which allows users to make easy changes to turning contours and milling boundaries by assigning geometric constraints to 2D contours. Other enhancements to the -S module include being able to measure and record distances between two shapes, like meshes, solids, and face models.

Alan Levine, Managing Director of OPEN MIND Technologies USA, Inc., said, “Keeping the hyperMILL suite at the forefront of CAM technology, we are pleased to offer our customers improved CAM strategies and enhanced CAD tools for even greater machining productivity through our new release of hyperMILL 2018.2.”

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ECCO Steps Forward with 3D Printed Custom Silicone Midsoles

German company ViscoTec, which manufactures systems required for conveying, dosing, applying, filling, and emptying medium to high-viscosity fluids for multiple industries, including automotive, medical, and aerospace, is well-known in the 3D printing world for its two-component print head for viscous materials like silicone. The Bavaria-based company, which began working with 3D printing four years ago, employs about 200 people worldwide, and is now putting its print head to the test through a collaboration with Danish heritage footwear brand and manufacturer ECCO.

ECCO, a family-owned business founded in 1963 with factories and subsidiaries in China, Indonesia, Portugal, Slovakia, Thailand, and Vietnam, has a vision of becoming the top premium brand for leather goods and shoes. The latest innovation to be introduced by the Innovation Lab of ECCO is called QUANT-U, an experimental footwear customization project.

QUANT-U relies on three core technologies: real-time analysis, data-driven design, and in-store 3D printing. The project combines these technologies to create custom, personalized midsoles, in just two hours, out of a heat cured two-component silicone.

Most everyone likes personalized products such as shoes, but due to the necessary cost, production time, and expertise involved in making custom footwear, they’re typically not available to everyone. But thanks to ECCO’s partnership with ViscoTec, this is going to change.

3D printing of silicone midsoles with ViscoTec printhead.

In order to specifically coordinate the material properties and the process, ECCO had to rethink its approach to customization, and now plans to utilize ViscoTec’s print head technology and two-component silicone to 3D print customer-specific midsoles for its customers, so each person can enjoy their own tailored fit and comfort.

According to the Innovation Lab ECCO website for QUANT-U, “A midsole is the functional heart of the shoe. It plays a key role in the performance and comfort of your footwear. Two years of research has proven that replacing the standard PU midsoles with 3D printed silicone can tune its inherent properties; viscoelasticity, durability and temperature stability.”

The QUANT-U process has three steps, starting with using scanners and wearable sensors to measure the customer’s feet and build a unique digital footprint. This biomechanical data is then evaluated and interpreted using a sophisticated algorithm, and a unique configuration is generated through structural simulations and machine learning.

This augmented pattern is optimized for each person’s respective feet and activity level by making adjustments to its densities, patterns, and structures, and the final 3D printed midsoles are personalized according to the customer’s own orthopedic parameters for a far more comfortable fit than you’d get with typical store-bought midsoles. Within just a few hours, you’re able to take home your custom 3D printed midsoles, along with your chosen pair of ECCO shoes.

Thermal cross-linking of the individual silicone layers.

By 3D printing the two-component silicone, ECCO is able to optimally counteract the high mechanical stresses we often deal with in everyday life; this is thanks to the midsole’s algorithmic designs combining with the silicone’s unique properties. By utilizing 3D printing, ECCO will be able to fabricate large quantities of personalized midsoles.

Using ViscoTec’s print heads gives ECCO several unique advantages, such as the usage of heat cured two-component silicone and precise 3D printing results, in addition to making sure that the silicone is uniformly mixed in the static mixing tube.

The footwear industry, which often utilizes 3D printing, has been growing fast over the last few years, with its global market expected to reach $371.8 billion by 2020. We often see 3D printed insoles and midsoles available for purchase now, and ECCO’s collaboration with ViscoTec and its unique 3D print head will certainly help keep it in the game.

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[Images provided by ViscoTec]