Daily Archives: January 7, 2015

Sale price reported

45 Old Stone Bridge

45 Old Stone Bridge

45 Old Stone Bridge, $2.1 million. Sold for $2,287,500 in 2006. Prices in this neighborhood took a hammering in the 2008-2012 debacle, but it appears that they’ve recovered.


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Wait til they start making houses this way

3D printing moves into relevance as key patents expire.

For many, 3D printing still looks like a gimmick, used for printing useless plastic figurines and not much else.

But with key patents running out this year, new printers that use metal, wood and fabric are set to become much more widely available — putting the engineering world on the cusp of major historical change.

The billion-dollar defence industry is at the bleeding edge of this innovation, with the US military already investing heavily in efforts to print uniforms, synthetic skin to treat battlewounds, and even food, said Alex Chausovsky, an analyst at IHS Technology.

In the real world, the baby steps are already being taken.

Late last year, British defence firm BAE Systems put the first printed metal part in a Tornado jet fighter.

But the real revolution of 3D printing is less about the things you can make and more about where you make them.

Being able to take printers to a warzone promises a radical shake-up of combat and the defence industry, says Peter W Singer, an expert in future warfare at the New America Foundation.

“Defence contractors want to sell you an item but also want to own the supply chain for 50 years,” he says.

“But now you’ll have soldiers in an austere outpost in somewhere like Afghanistan who can pull down the software for a spare part, tweak the design and print it out.”

This could lead militaries to cut out private defence companies altogether. And by combining 3D printing with assembly line robotics, those that remain will be enormously streamlined.

That sort of disruption carries huge political implications in places like the United States where defence firms are purposefully spread around the country and support millions of jobs.

3D printing could even change foreign policy, for instance by undermining sanctions.

“The US has sanctioned everything from fighter jet spare parts to oil equipment. 3D printing could turn sanctions — which have been a crucial part of foreign policy for a generation or more — into an antiquated notion,” says Singer.

… The recent upsurge in interest is tied to the fact that patents on the original technology are expiring — opening the way for competition that will drive up quality and push down prices.

The first major patents to run out were in 2009 for a system that used plastics known as “fused deposition modelling”.

But the next big ones, that expired in the first half of 2014, are related to “selective laser syntering” that prints metals such as aluminium, copper and steel, and with much greater definition.

And rather than working with solid lumps of metal, engineers can create complex new shapes that use much less material without losing any strength.

“You can’t drill a curved hole,” says Chausovsky. “With 3D printing, you’re creating products that would never be possible with traditional methods.

The full implications are still hard to imagine.

“It’s the first time in a very long time that there’s been such a radical shake up in industrial engineering,” says Stevens at BAE. “We’re not just improving things — we’re re-writing the rule book.”

I’ve been following this story for several years now, and the progress has been amazing: they’re already making prosthetic limbs for a few bucks, instead of $10,000, and manufacturing complex machine parts that used to require multi-million-dollar milling machines and months of time for peanuts, in days. As an analogy, think of the first Kay-Pro computers of 1976, useful as toys only, to today’s computer; it won’t take so long to revolutionize manufacturing with 3D.


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