The word is in: An article in yesterday’s New York Times declares that stainless steel is better than plastic bottles for the environment–if one stainless bottle takes the place of at least 50 plastic bottles. The two writers of the column are developing a software product that conducts lifecycle assessments. They issued their verdict on stainless steel bottles after taking into account the environmental impacts of mining iron ore, chromium, and nickel, transporting them large distances, making the steel, transporting the steel, fabricating the bottles, and so on.
I can’t comment on the quality of the argument because zero data is provided on any of the inputs, and no information at all is provided on the plastic product.Assuming they are correct, however, isn’t this a little strange? Under what circumstances would someone use a stainless steel bottle to drink water? A hike maybe. No, stainless is too heavy. And how does stainless steel get into the recycling stream? Do you take it to a car shredder? What if people re-fill plastic bottles to drink water?
And what about the environmental waste of printing this silliness on half a page of the New York Times and distributing it across North America to a million people?
A new service lets engineers and orthopedic surgeons design and 3D print highly accurate, patient-specific, orthopedic medical implants made of metal -- without owning a 3D printer. Using free, downloadable software, users can import ASCII and binary .STL files, design the implant, and send an encrypted design file to a third-party manufacturer.
A recent report sponsored by the American Chemistry Council (ACC) focuses on emerging gasification technologies for converting waste into energy and fuel on a large scale and saving it from the landfill. Some of that waste includes non-recycled plastic.
Capping a 30-year quest, GE Aviation has broken ground on the first high-volume factory for producing commercial jet engine components from ceramic matrix composites. The plant will produce high-pressure turbine shrouds for the LEAP Turbofan engine.
Seismic shifts in 3D printing materials include an optimization method that reduces the material needed to print an object by 85 percent, research designed to create new, stronger materials, and a new ASTM standard for their mechanical properties.
A recent study finds that 3D printing is both cheaper and greener than traditional factory-based mass manufacturing and distribution. At least, it's true for making consumer plastic products on open-source, low-cost RepRap printers.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.