RAPID prototyping, TECHNOLOGICAL innovations, MANUFACTURING processes, THREE-dimensional printing, 3-D printers, and DIGITAL printing
The article focuses on the evolution and improvements on 3D printer, one of the most important tools for product development as it helps prototypers build parts in a matter of hours, when machining or molding can take days or weeks. Information on some of the innovations include high-performance filaments, multi-material printing, and metal printing.
We present an interactive design system for designing free-formed bamboo-copters, where novices can easily design free-formed, even asymmetric bamboo-copters that successfully fly. The designed bamboo-copters can be fabricated using digital fabrication equipment, such as a laser cutter. Our system provides two useful functions for facilitating this design activity. First, it visualizes a simulated flight trajectory of the current bamboo-copter design, which is updated in real time during the user's editing. Second, it provides an optimization function that automatically tweaks the current bamboo-copter design such that the spin quality—how stably it spins—and the flight quality—how high and long it flies—are enhanced. To enable these functions, we present non-trivial extensions over existing techniques for designing free-formed model airplanes [UKSI14], including a wing discretization method tailored to free-formed bamboo-copters and an optimization scheme for achieving stable bamboo-copters considering both spin and flight qualities. [ABSTRACT FROM AUTHOR]
RAPID prototyping, THREE-dimensional printing, 3-D printers, COMPUTER graphics, and COMPUTER art
We present a pipeline of algorithms that decomposes a given polygon model into parts such that each part can be 3D printed with high (outer) surface quality. For this we exploit the fact that most 3D printing technologies have an anisotropic resolution and hence the surface smoothness varies significantly with the orientation of the surface. Our pipeline starts by segmenting the input surface into patches such that their normals can be aligned perpendicularly to the printing direction. A 3D Voronoi diagram is computed such that the intersections of the Voronoi cells with the surface approximate these surface patches. The intersections of the Voronoi cells with the input model's volume then provide an initial decomposition. We further present an algorithm to compute an assembly order for the parts and generate connectors between them. A post processing step further optimizes the seams between segments to improve the visual quality. We run our pipeline on a wide range of 3D models and experimentally evaluate the obtained improvements in terms of numerical, visual, and haptic quality. [ABSTRACT FROM AUTHOR]
RAPID prototyping, ELASTOMERS, 3-D printers, and THREE-dimensional printing
The article discusses the company Stratasys which is bringing to market advanced elastomers and enhanced materials for its leading Fused Granular Manufacturing (FDM) and Polyjet machines that are used in three-dimensional printing. It states that the FDM elastomer solution provides manufacturers with new levels of elasticity, durability with true soluble support, while advanced colors for Polyjet drive enhanced realism in transforming legacy design and prototyping processes.
RAPID prototyping, AIR quality, EMISSIONS (Air pollution), 3-D printers, and PHYSIOLOGICAL effects of nanoparticles
3D printers are currently widely available and very popular among the general public. However, the use of these devices may pose health risks to users, attributable to air-quality issues arising from gaseous and particulate emissions in particular. We characterized emissions from a low-end 3D printer based on material extrusion, using the most common polymers: acrylonitrile-butadiene-styrene (ABS) and polylactic acid (PLA). Measurements were carried out in an emission chamber and a conventional room. Particle emission rates were obtained by direct measurement and modeling, whereas the influence of extrusion temperature was also evaluated. ABS was the material with the highest aerosol emission rate. The nanoparticle emission ranged from 3.7·108 to 1.4·109 particles per second (# s−1) in chamber measurements and from 2.0·109 to 4.0·109 # s−1in room measurements, when the recommended extruder temperature was used. Printing with PLA emitted nanoparticles at the rate of 1.0·107 # s−1 inside the chamber and negligible emissions in room experiments. Emission rates were observed to depend strongly on extruder temperature. The particles' mean size ranged from 7.8 to 10.5 nanometers (nm). We also detected a significant emission rate of particles of 1 to 3 nm in size during all printing events. The amounts of volatile organic and other gaseous compounds were only traceable and are not expected to pose health risks. Our study suggests that measures preventing human exposure to high nanoparticle concentrations should be adopted when using low-end 3D printers. [ABSTRACT FROM AUTHOR]
The article presents questions and answers related to prototyping, including what is the most user-friendly 3D printers, what is the best way to prototype electronic components and how to provide recognizable proof of concept over aesthetic design.
This paper first reviews manufacturing technologies for realizing air-filled metal-pipe rectangular waveguides (MPRWGs) and 3-D printing for microwave and millimeter-wave applications. Then, 3-D printed MPRWGs are investigated in detail. Two very different 3-D printing technologies have been considered: low-cost lower-resolution fused deposition modeling for microwave applications and higher-cost high-resolution stereolithography for millimeter-wave applications. Measurements against traceable standards in MPRWGs were performed by the U.K.’s National Physical Laboratory. It was found that the performance of the 3-D printed MPRWGs were comparable with those of standard waveguides. For example, across X-band (8–12 GHz), the dissipative attenuation ranges between 0.2 and 0.6 dB/m, with a worst case return loss of 32 dB; at W-band (75–110 GHz), the dissipative attenuation was 11 dB/m at the band edges, with a worst case return loss of 19 dB. Finally, a high-performance W-band sixth-order inductive iris bandpass filter, having a center frequency of 107.2 GHz and a 6.8-GHz bandwidth, was demonstrated. The measured insertion loss of the complete structure (filter, feed sections, and flanges) was only 0.95 dB at center frequency, giving an unloaded quality factor of 152—clearly demonstrating the potential of this low-cost manufacturing technology, offering the advantages of lightweight rapid prototyping/manufacturing and relatively very low cost when compared with traditional (micro)machining. [ABSTRACT FROM PUBLISHER]
RAPID prototyping, THREE-dimensional printing, 3-D printers, PRESSURE sensors, and DIGITAL printing
The article discusses the advantage for manufacturers to consider using 3D metal printing for flow and pressure sensors. Brief overview of the history of 3D printing and different industrial applications is explored. The development of quality standards for may of the 3D-metal printing alloys and processes, as well as its emerging methods, is also mentioned.
The article discusses British-led advances in three-dimensional (3D) printing that could lead to techniques able to quickly produce entire electronic devices. Topics covered include the role of additive techniques in complementing manufacturing processes, progress in multifunctional 3D printing or 4D printing, Nottingham University researchers' focus on technology with less immediate commercial relevance, and the advantages of advanced jetting technologies.
RAPID prototyping, INDUSTRIAL safety, ELECTRIC drills, GLUE guns, 3-D printers, and EQUIPMENT & supplies
The article offers information on several tools used in a prototyping shop. Topics discussed include features of a standard rotary tool, uses of a hot glue gun and importance of a table saw. Also mentioned are the different types of three-dimensional (3D) printers and safety precautions when setting up a workspace for prototyping purposes.
The article focuses on three dimensional (3D) printing in 2014 and discusses how it will impact manufacturing and design. Topics include how 3D printing has revolutionized the manufacturing of customizable components, increased accessibility to 3D printing by consumers, and how 3D printing will lessen industrial waste.
RAPID prototyping, THREE-dimensional printing, and 3-D printers
The article reports that R.D. Abbott Co. Inc., a California-based supplier of elastomer products and technical services, uses the liquid silicone rubber 3D printing technology, developed by German RepRap GmbH and Dow Performance Silicones, to cut down prototyping process. Topics discussed include remarks from Rick Ziebell, R.D. Abbott's vice president of technology, and potential benefit of the liquid additive manufacturing (LAM) 3D printing process.
Cornell Real Estate Review. Jun2015, Vol. 13, p94-111. 18p.
RAPID prototyping, LOW-income housing, HOUSE construction, THREE-dimensional printing, 3-D printers, DESIGN & construction, and CONCRETE construction
In addition to showcasing the signifcance of 3D concrete printing technology, this report seeks to analyze what factors would inhibit, allow for, or facilitate Contour Crafting's success in select countries. Saudi Arabia and China would be the optimal countries to introduce Contour Crafting based on our Excel-based model that controls for variables related to wealth, size, likelihood to consume, and concrete consumption per capita. Further research on country-specifc regulation fosters the hypothesis that Contour Crafting is more likely to succeed in Saudi Arabia than in China. Contour Crafting's global investing strategy will likely be through a joint venture partnership with governments via sovereign funds. Since capital partnerships seek to utilize the technology to supply low-income housing units, end users would not be able to afford the technology and would theoretically be funded by nations seeking solutions to underlying social issues impacting citizens. Overall feasibility is contingent upon government regulated housing, infrastructure, and cheaper alternatives of construction that provide adequate enclosure systems. Though Contour Crafting is a novel construction technique, it's unlikely to be adopted as an economically feasible method for affordable housing construction. [ABSTRACT FROM AUTHOR]
Bulletin of the Association for Information Science & Technology. Oct/Nov2015, Vol. 42 Issue 1, p12-15. 4p.
RAPID prototyping, LIBRARIES, TECHNOLOGICAL innovations, COMMUNITY development, and 3-D printers
EDITOR'S SUMMARY Makerspaces are environments where crafters and techies can come together to create, share and learn. Many libraries support the maker movement by providing access to a variety of technologies from sewing machines and looms to recording equipment and production tools, an expansion of services that is in line with promoting literacy, community and lifelong learning. About one third of makerspaces charged a fee or required membership in 2013, though some, including libraries and museums, are supported by major funding agencies. Digital fabrication technology or 3D printers are increasingly available through library-based makerspaces and extend opportunities for STEM education, but libraries face challenges from high initial and ongoing costs, user training and even encouraging users in 3D thinking and design. 3D printers can be a powerful stimulus for creativity, learning and sharing, even promoting jobs and community development. [ABSTRACT FROM AUTHOR]
RAPID prototyping, NEW business enterprises, THREE-dimensional printing, 3-D printers, and CREATIVE thinking
The article discusses the Wohlers Report 2015, which provides an annual summary on the additive manufacturing industry, with estimates and forecasts. The report states that 3D printing has led to creative way of thinking and conducting business. It has resulted in startup companies as well as fresh business models. According to the report, the technology has given birth to new types of educational and training programs that offer hands-on learning, experimentation, creativity, and invention.
RAPID prototyping, TECHNOLOGICAL innovations, SHIPMENT of goods, THREE-dimensional printing, and 3-D printers
The article reports on the fast evolution of three-dimensional (3D) printing technologies making them the frontliners in the additive manufacturing revolution. The 3D printing market is expected to growth through 2021 and recent developments in speed, quality, and the variety of materials it can print made 3D printing surpass its traditional role as a rapid prototyping tool. Global unit shipments of 3D printers in 2016 is 455,772 and is forecast to increase to 6,700,000 by 2020.
Modern Machine Shop. Jul2016, Vol. 89 Issue 2, p50-60. 6p.
RAPID prototyping, SMALL business, EXHIBITIONS, CONFERENCES & conventions, 3-D printers, and THREE-dimensional printing
The article reflects on the event, Rapid 2016 held in the U.S. It states that the event was organized by small and medium sized enterprises (SMEs), and around 247 exhibitors participated in it. It also mentions that registration for the third annual Additive Manufacturing Conference to be held in 2016 is open now.
PROTOTYPES, NEW product development, NUMERICAL control of machine tools, 3-D printers, and DRAWING
The article offers suggestion on starting prototyping for product development. Topics discussed include uses of prototyping tools such as laser cutters and computer numerical control (CNC) milling technology, sketching of ideas for preserving concept, and use of three dimension (3D) printers for printing conceived ideas.