Computational Hydrographic Printing
From Yizhong Zhang, Chunji Yin, Changxi Zheng, Kun Zhou's paper: Hydrographic printing is a well-known technique in industry for transferring color inks on a thin film to the surface of a manufactured 3D object. It enables high-quality coloring of object surfaces and works with a wide range of materials, but suffers from the inability to accurately register color texture to complex surface geometries. Thus, it is hardly usable by ordinary users with customized shapes and textures.
We present computational hydrographic printing, a new method that inherits the versatility of traditional hydrographic printing, while also enabling precise alignment of surface textures to possibly complex 3D surfaces. In particular, we propose the first computational model for simulating hydrographic printing process. This simulation enables us to compute a color image to feed into our hydrographic system for precise texture registration. We then build a physical hydrographic system upon off-the-shelf hardware, integrating virtual simulation, object calibration and controlled immersion. To overcome the difficulty of handling complex surfaces, we further extend our method to enable multiple immersions, each with a different object orientation, so the combined colors of individual immersions form a desired texture on the object surface. We validate the accuracy of our computational model through physical experiments, and demonstrate the efficacy and robustness of our system using a variety of objects with complex surface textures... (full paper)
New dual-step method provides 3D printing of conductive metals.
Shalini Saxena for ArsTechnica: Customizable, wearable electronics open the door to things like heart-monitoring t-shirts and health-tracking bracelets. But placing the needed wiring in a complex 3D architecture has been hard to do cheaply. Existing approaches are limited by material requirements and, in the case of 3D writing, slow printing speeds. Recently, a research team at Harvard University developed a new method to rapidly 3D print free-standing, highly conductive, ductile metallic wires.
The new method combines 3D printing with focused infrared lasers that quickly anneal the printed nanoparticles into the desired architecture. The result is a wire with an electrical conductivity that approaches that of bulk silver. Cont'd...
Inside the Gigafactory That Will Decide Tesla's Fate
From Bloomberg:
To get to Tesla’s Gigafactory, you drive east from Reno, Nevada, turn into a sprawling industrial center, and make a left on Electric Avenue. The high desert landscape dwarfs everything, even the vast white building with the red stripe along the top. As you reach the gate with the security guard, the breadth of Tesla’s ambitions becomes clear. Even the name itself suggests more to come: Gigafactory 1...
...The $5 billion Gigafactory was born of necessity. Tesla needs a hell of a lot of batteries, for both the forthcoming mass-market Model 3 sedan and the Tesla Energy product line. The timeline for getting those batteries made just became much shorter, too. On Wednesday, Tesla Chief Executive Elon Musk stunned investors by announcing a sped-up production schedule that calls for a half-million electric vehicles per year by 2018, not the previously stated goal of 2020. For a company that delivered just 50,658 vehicles in 2015, the ramp looks like a hockey stick... (full story)
The MakerBot Obituary
From Brian Benchoff at Hackaday: MakerBot is not dead, but it is connected to life support waiting for a merciful soul to pull the plug. This week, MakerBot announced it would lay off its entire manufacturing force, outsourcing the manufacturing of all MakerBot printers to China. A few weeks ago, Stratasys, MakerBot’s parent company, released their 2015 financial reports, noting MakerBot sales revenues have fallen precipitously. The MakerBot brand is now worth far less than the $400 Million Stratasys spent to acquire it. MakerBot is a dead company walking, and it is very doubtful MakerBot will ever be held in the same regard as the heady days of 2010.
How did this happen? The most common explanation of MakerBot’s fall from grace is that Stratasys gutted the engineering and goodwill of the company after acquiring it. While it is true MakerBot saw its biggest problems after the acquisition from Stratasys, the problems started much earlier... (full article) (fist hand account from Isaac Anderson)
Disney files patent for near instantaneous 3D printing
Lucas Mearian for ComputerWorld: Disney Research has filed a patent for a 3D printing technology that uses high-intensity light to harden photo-sensitive resin in a single process, removing the need for layer-by-layer printing.
The patent describes a machine for printing in "a nearly instantaneous manner."
"Presently, 3D printing is extremely slow and time consuming. For example, it may take several hours to print a single 3D object even if the 3D object is relatively small (e.g., several inches in diameter and four to 12 inches tall)," Disney stated in its patent filing. "The 3D printing process that uses conventional 3D printers ... is limited in its speed by the speed of the mechanism moving the print head to each new position on a print layer." Cont'd...
A Swarm Of 3D Printing Spiders Could Build Your Next Home
IDO LECHNER for PSFK: Watching an object being 3D-printed is a spectacle to behold; the speed at which intricate geometries unfold before your eyes is enough for anyone to reckon that this is the future of manufacturing. While both consumer-grade models and more advanced versions are capable of whipping up objects made from different materials, each with their own aesthetic and subsequent properties, the scale of what can be fabricated is entirely based on the size of the printer at use. For this reason, a research team based out of Siemens’ Corporate Technology’s Princeton campus has developed mobile 3D printers in the shape of spiders, which are both autonomous and capable of working in sync to expedite the printing process.
PSFK spoke with Siemens’ Director of R&D of Engineering Livio Dalloro on why the team decided to shape their printers like spiders, the implications such a technique might have on the industry, and how Siemens sees the device unfolding in the foreseeable future. Cont'd...
Bring 3D printed robots to life with 'Ziro' hand-controlled robotics kit
Benedict for 3Ders.org: Tech startup ZeroUI, based in San Jose, California, has launched an Indiegogo campaign for Ziro, the “world’s first hand-controlled robotics kit”. The modular kit has been designed to bring 3D printed creations to life, and has already surpassed its $30,000 campaign goal.
It would be fair to say that the phenomenon of gesture recognition, throughout the wide variety of consumer electronics to which it has been introduced, has been a mixed success. The huge popularity of the Nintendo Wii showed that—for the right product—users were happy to use their hands and bodies as controllers, but for every Wii, there are a million useless webcam or smartphone functions, lying dormant, unused, and destined for the technology recycle bin. Full Article:
Swagway Teardown: What Makes a Safe Hoverboard?
From Andrew Goldberg at Ifixit.org:
The board is also smart enough to not drive around without you. Riders need both feet firmly planted on the board or it won’t be going anywhere. Just how does the board know you’re properly mounted? Each foot pad has two infrared sensors—one at the toe, one at the heel. Stepping down on the pad pushes a peg between emitter and receiver. Only when all four sensors are blocked are you ready to roll...
...Those sensor switches live on the backs of the two gyro boards—one for each wheel. These boards are largely responsible for the “smart” part of smartboard. Each board is home to an Invensense MPU6050 6-axis gyroscope+accelerometer, and a GigaDeviceGD32F130 ARM Cortex-M3 32-bit microcontroller (thanks, Ken!). The ARM chips are responsible for reading the infrared switches, controlling the sweet underglow headlights and top-mounted indicator LEDs, and collating and sending data from the MPU6050 to the main board (more on that later)... ( full article )
This 3D printer can rival standard manufacturing on the factory floor
Lucas Mearian for ComputerWorld: Start-up Carbon began shipping its industrial-grade 3D printer with the expectation that big-name companies will soon be using it to replace traditional forms of manufacturing.
Last year, the Silicon Valley company emerged from quiet mode to announce its technology: a machine that can create objects 25 to 100 times faster than other 3D printers.
Carbon is not selling its M1 3D printer outright, but instead is offering it through a subscription price of $40,000 per year, which includes a service and maintenance plan.
The three-year-old company based in Redwood City, Calif. said its Continuous Liquid Interface Production (CLIP) printing process can create objects in minutes compared to the hours a typical 3D printer requires. Cont'd...
With this new 3D printing technique, robots can "practically walk right out of the printer"
Katherine Noyes for Digital Arts: Imagine you could use a standard 3D printer to create your next robotic assistant. Just snap in a motor and battery, and it's ready to go.
That's precisely the scenario made possible by a new 3D printing technique developed at MIT.
Liquids have long been a challenge for 3D printing, and they're necessary for hydraulic devices like moving robots. On Wednesday, researchers at MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) announced what they call the first-ever technique for 3D printing robots that can print solid and liquid materials at the same time. Cont'd...
Greycork Challenges Ikea With A Flat-pack Living Room In A Box
From Dezeen: Rhode Island furniture company Greycork has created a collection of quick-assembly, flat-pack pieces that are intended "to be a better alternative to Ikea"...
...Each piece is shipped for free in a thin, flat box and is designed to be assembled by the customer in under four minutes...
...The company's first line, the Brooks Collection, featured a folding dining table, coffee table and bench – all made of wood and priced from $500 to $950... ( full story ) ( Greycork site )
This Factory Robot Learns a New Job Overnight
MIT Technology Review: Fanuc’s robot uses a technique known as deep reinforcement learning to train itself, over time, how to learn a new task. It tries picking up objects while capturing video footage of the process. Each time it succeeds or fails, it remembers how the object looked, knowledge that is used to refine a deep learning model, or a large neural network, that controls its action. Deep learning has proved to be a powerful approach in pattern recognition over the past few years.
“After eight hours or so it gets to 90 percent accuracy or above, which is almost the same as if an expert were to program it,” explains Shohei Hido, chief research officer at Preferred Networks, a Tokyo-based company specializing in machine learning. “It works overnight; the next morning it is tuned.”... ( full story )
NASA is sending a 3D printer to space that you can use
Emily Calandrelli for TechCrunch: NASA is preparing to send its first commercial manufacturing facility to the International Space Station (ISS). The 3D printing company Made in Space has partnered with NASA to send their Additive Manufacturing Facility (AMF) to the space station on a launch scheduled to take place next Tuesday.
Users on Earth can pay to use AMF, a 3D printer specially designed to operate in a microgravity environment, to print products on the space station. Once it arrives, Made in Space will be able to command AMF remotely from their headquarters in the NASA Ames Research Park.
Spencer Pitman, head of product strategy at Made in Space, told TechCrunch that the company has already secured 20 paying customers for AMF. Their customers include high schools that are hosting space-related design challenges, universities that will print medical research components, and companies that will print commercial parts for satellites and other spacecraft. Cont'd...
Nanolights
From Nature.com:
Ultimately, Goh, a PhD candidate at the National University of Singapore, hopes that the method will help her to find blood vessels that are leaking owing to inflammation, perhaps helping to detect malaria or predict strokes. Crucial to her technique are the virus-sized particles that give the solution its colour. Just a few tens of nanometres across, they are among a growing array of 'nanolights' that researchers are tailoring to specific types of fluorescence: the ability to absorb light at one wavelength and re-emit it at another.
Many naturally occurring compounds can do this, from jellyfish proteins to some rare-earth compounds. But nanolights tend to be much more stable, versatile and easier to prepare — which makes them attractive for users in both industry and academia.
The best-established examples are quantum dots: tiny flecks of semiconductor that are prized for their beautiful, crisp colours. Now, however, other types of nanolight are on the rise. Some have a rare ability to absorb lots of low-energy photons and combine the energy into a handful of high-energy photons — a trick that opens up opportunities such as producing multiple colours at once. Others are made from polymers or small organic molecules. These are less toxic than quantum dots and often outshine them — much to the amazement of chemists, who are used to carbon-based compounds simply degrading in the presence of ultraviolet light... ( full article )
Mobile Robotic Fabrication System for Filament Structures
The project Mobile Robotic Fabrication System for Filament Structures, developed by ITECH graduate Maria Yablonina, demonstrates a new production process for filament structures. It proposes multiple semi-autonomous wall climbing robots to distribute fiber filament, using any horizontal or vertical surface, or even existing architecture, to support the new structures. Compared to larger scale industrial robots that are limited by position and reach, these robots are enabled with movement systems and a collection of sensors that allow them to travel and interact accurately along typical ground, walls, roofs, and ceilings. One can imagine a fabrication process where an operator arrives to the scene with a suitcase housing all the necessary robots and materials to create a large structure. These agile mobile robotic systems move robotic fabrication processes beyond the constraints of the production hall, exposing vast urban and interior environments as potential fabrication sites.
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