Though it is designed with the fans of the Terminator movies in mind, this 3D-printed arm could give us a glimpse into the future of prosthetics. Highlighted at the London Science Museum's 3D printing exhibition, the arm was designed by Richard Hague, director of the University of Nottingham's additive manufacturing and 3D printing research group. The model printed in clear plastic shows in detail how it would work. The circuits can sense temperature, feel objects, and control the arm's movement. (Source: NewScientist.com)
Yes, 3D printing has been around a while. Part of the recent explosion in interest in it stems from the name -- 3D printing. I wrote about stereolithography 20 years ago and there wasn't much interest in it. Similarly, the use of the terms "selective laser sintering" and "fused deposition modeling" didn't send anyone's heart racing, either. But the name "3D printer" captured the public's interest, and captured the interest of the mainstream press, even though many "3D printers" don't look like printers at all. The clever name will ultimately allow the world to consider it long enough to see the amazing things a that an FDM machine or SLS machine can do.
Thanks for the history lesson, Chuck. I've been wondering where this techology came from. It seemed like it popped out of nowhere. As well as being an attractive name, 3D printing clearly describes the object's function.
Good news, whic is that those expensive spools of plastic are not at all the only way to print with plastic. A mechanisation quite similar to a hot glue gun can dispense small drops of molten plastic, which can be from ordinary regrind plastic. LOts cheaper and available in a whole lot more places. And the mechanism may even be simpler than the feed for the plastic string stock. The main downside is needing to reload a bit more often. But extruding drops of melted regrind is a great way to make things indeed.
I think the prosthetic hand points to the future. Imagine if stem cells taken from your body could be grown and printed to form a new replacement body part that was genetically the same as the owner. There would be no rejection issues. I believe this will happen, just a matter of time.
Iterative design — the cycle of prototyping, testing, analyzing, and refining a product — existed long before additive manufacturing, but it has never been as efficient and approachable as it is today with 3D printing.
People usually think of a time constant as the time it takes a first order system to change 63% of the way to the steady state value in response to a step change in the input -- it’s basically a measure of the responsiveness of the system. This is true, but in reality, time constants are often not constant. They can change just like system gains change as the environment or the geometry of the system changes.
At its core, sound is a relatively simple natural phenomenon caused by pressure pulsations or vibrations propagating through various mediums in the world around us. Studies have shown that the complete absence of sound can drive a person insane, causing them to experience hallucinations. Likewise, loud and overwhelming sound can have the same effect. This especially holds true in manufacturing and plant environments where loud noises are the norm.
The tech industry is no stranger to crowdsourcing funding for new projects, and the team at element14 are no strangers to crowdsourcing ideas for new projects through its design competitions. But what about crowdsourcing new components?
It has been common wisdom of late that anything you needed to manufacture could be made more cost-effectively on foreign shores. Following World War II, the label “Made in Japan” was as ubiquitous as is the “Made in China” version today and often had very similar -- not always positive -- connotations. Along the way, Korea, Indonesia, Malaysia, and other Pacific-rim nations have each had their turn at being the preferred low-cost alternative to manufacturing here in the US.
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