This is the first draft of the large scale 3d printing protocol for granulated thermoplastics. The main purpose of this document is to share the key steps of operating, preparation, data entry, and optimization procedures while handling the robotic 3d printing equipment. One main aspect of this protocol is that it is independent of specific 3d printing hardware or software setups. The aim is to have the users from robotic 3d printing from various technologies follow these steps and be able to set the basics up when it comes to handling such 3d printers.
De wereld verandert in een razend tempo. Technologische ontwikkelingen hebben een grote impact op mens en maatschappij. Het verandert niet alleen onze manier van werken maar ook onze manier van leven. Steeds meer disciplines hanteren technologie als basis om in een professionele omgeving het werk kwalitatief beter, sneller en effi ciënter uit te voeren. Digitalisering, globalisering en informatisering maakt het mogelijk om plaats- en tijdonafhankelijk te studeren en te werken. Fontys Hogescholen speelt hier op in door tal van initiatieven te ondersteunen die gericht zijn op het volgen van deze en opkomende trends rondom technologische ontwikkelingen en de impact voor het onderwijs. Met het Fontys Objexlab zetten we deze beweging door. Opkomende technologieën zoals 3D printing en Robotica maken we graag toegankelijk voor collega’s. Andere instituten kunnen hiervan gebruik maken zodat zij hun onderwijs nog aantrekkelijker en actueler kunnen maken. In het najaar van 2014 zijn we gestart met het samenbrengen van collega’s van verschillende instituten en opleidingen om enerzijds deze nieuwe technologieen te leren en te ervaren, om daarna een stap te maken in het initiëren van ideeën en plannen om met deze kennis en vaardigheden onderwijsvernieuwing gezamenlijk vorm- en inhoud te geven.
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Many articles have been published on scale-down concepts as well as additive manufacturing techniques. However, information is scarce when miniaturization and 3D printing are applied in the fabrication of bioreactor systems. Therefore, garnering information for the interfaces between miniaturization and 3D printing becomes important and essential. The first goal is to examine the miniaturization aspects concerning bioreactor screening systems. The second goal is to review successful modalities of 3D printing and its applications in bioreactor manufacturing. This paper intends to provide information on anaerobic digestion process intensification by fusion of miniaturization technique and 3D printing technology. In particular, it gives a perspective on the challenges of 3D printing and the options of miniature bioreactor systems for process high-throughput screening.
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Recycling of plastics plays an important role to reach a climate neutral industry. To come to a sustainable circular use of materials, it is important that recycled plastics can be used for comparable (or ugraded) applications as their original use. QuinLyte innovated a material that can reach this goal. SmartAgain® is a material that is obtained by recycling of high-barrier multilayer films and which maintains its properties after mechanical recycling. It opens the door for many applications, of which the production of a scoliosis brace is a typical example from the medical field. Scoliosis is a sideways curvature of the spine and wearing an orthopedic brace is the common non-invasive treatment to reduce the likelihood of spinal fusion surgery later. The traditional way to make such brace is inaccurate, messy, time- and money-consuming. Because of its nearly unlimited design freedom, 3D FDM-printing is regarded as the ultimate sustainable technique for producing such brace. From a materials point of view, SmartAgain® has the good fit with the mechanical property requirements of scoliosis braces. However, its fast crystallization rate often plays against the FDM-printing process, for example can cause poor layer-layer adhesion. Only when this problem is solved, a reliable brace which is strong, tough, and light weight could be printed via FDM-printing. Zuyd University of Applied Science has, in close collaboration with Maastricht University, built thorough knowledge on tuning crystallization kinetics with the temperature development during printing, resulting in printed products with improved layer-layer adhesion. Because of this knowledge and experience on developing materials for 3D printing, QuinLyte contacted Zuyd to develop a strategy for printing a wearable scoliosis brace of SmartAgain®. In the future a range of other tailor-made products can be envisioned. Thus, the project is in line with the GoChem-themes: raw materials from recycling, 3D printing and upcycling.
Currently, many novel innovative materials and manufacturing methods are developed in order to help businesses for improving their performance, developing new products, and also implement more sustainability into their current processes. For this purpose, additive manufacturing (AM) technology has been very successful in the fabrication of complex shape products, that cannot be manufactured by conventional approaches, and also using novel high-performance materials with more sustainable aspects. The application of bioplastics and biopolymers is growing fast in the 3D printing industry. Since they are good alternatives to petrochemical products that have negative impacts on environments, therefore, many research studies have been exploring and developing new biopolymers and 3D printing techniques for the fabrication of fully biobased products. In particular, 3D printing of smart biopolymers has attracted much attention due to the specific functionalities of the fabricated products. They have a unique ability to recover their original shape from a significant plastic deformation when a particular stimulus, like temperature, is applied. Therefore, the application of smart biopolymers in the 3D printing process gives an additional dimension (time) to this technology, called four-dimensional (4D) printing, and it highlights the promise for further development of 4D printing in the design and fabrication of smart structures and products. This performance in combination with specific complex designs, such as sandwich structures, allows the production of for example impact-resistant, stress-absorber panels, lightweight products for sporting goods, automotive, or many other applications. In this study, an experimental approach will be applied to fabricate a suitable biopolymer with a shape memory behavior and also investigate the impact of design and operational parameters on the functionality of 4D printed sandwich structures, especially, stress absorption rate and shape recovery behavior.
Lichtgewicht voertuigen voor stadsdistributie bestaan voor een belangrijk deel uit vezelversterkte kunststoffen zoals carbon fiber reinforced polymers. De productie hiervan is tijdrovend en recycling is maar beperkt mogelijk. Het realiseren van zero-emissie stadsvervoer in 2025 wordt met de bestaande technologie duur en niet circulair. ModuBase beoogt een nieuw recyclebaar polymeer in combinatie met een Added Manufacturing platform (3D Printen) te ontwikkelen. Hiermee wordt het mogelijk om volledig recyclebare kunststoffen 3D te printen dichtbij de montage van de voertuigen. Supply chains worden zo korter, gebruikers en ontwerpers krijgen meer ontwerpvrijheid en de grondstof is (oneindig) recyclebaar. Dit consortium maakt gebruik van een nieuw ontwikkeld thermoplastisch polymeer en gaat dit voor het eerst toepassen in 3D printing. Hiervoor is een consortium voorzien met de materiaalexpertise (DSM), 3D Printexpertise (CEAD) en werktuigbouwkundige ontwikkelexpertise (Fontys). De materialen worden uitvoerig bestudeerd voor automotive toepassingen, ontwerpregels worden opgesteld en eerste werkstukken worden geprint. Materiaaleigenschappen en recyclebaarheid na het printen worden in testopstellingen ge-evalueerd. Resultaat is een proof of concept van een vezelversterkt 3D print platform. Het betrokken industriële (automotive) cluster van Brainport wordt geïnteresseerd om met de nieuw ontwikkelde 3D printkennis prototypes voor Light Electric Vehicles onderdelen te gaan ontwikkelen en onderzoeken.
