A Clearer Picture For Utilizing Transparent Glass Within a 3D Printer

I recently wrote an article concerning a new technique of using a 3D printer to build up layers upon layers with pre-existing materials to create “glass” based objects. The accompanied video looked stunning and the potential applications seemed endless, well now, a team of MIT researchers have opened up a new frontier within 3-D printing which has expanded on the premise with new details concerning the ability to print optically transparent glass objects.

The ability to print glass objects is extremely complex and has been attempted by other research groups, the problem lies with the extremely high temperature which is required in order to melt the material. Quite a few development teams have used tiny particles of glass which is melded together at a lower temperature in a technique called sintering. Unfortunately, this technique has rendered such objects to be structurally weak and optically cloudy, thus eliminating two of glass’s most desirable attributes: strength and transparency.

MIT have therefore developed its own process which retains those properties and produces printed glass objects which are both strong and fully transparent to light. The device which is used to print such objects utilizes a computer assisted program which is similar to the standard design operating mechanisms implemented by current 3D printers. The result is a machine which can print objects with little human interaction or indeed intervention; it’s stunning to imagine an autonomous production line in your living room.

In the present incarnation, molten glass is loaded into a hopper within the top of the device after being gathered from a conventional glass blowing kiln. When completed, the finished piece must be cut away from the moving platform on which it is assembled; the temperatures are the same of 1900 degrees Fahrenheit which is approx 1037 degrees Celsius.

The potential uses for such a technique is mind-blowing, Neri Oxman, an associate professor at the MIT Media Lab envisions a future whereby it would be possible to “consider the integration of structural and environmental building performance within a single integrated skin.” This notion could completely transform the manufacturing process.

A further expansion on this technique would be to add pressure to the system which is either through a mechanical plunger or compressed gas, by doing so it is hoped to produce a more uniform flow and thus a more uniform width to the extruded filament of glass.

There is a potential downside to such a revolutionary direction, if you could inhabit a world where houses are printed on an industrial scale and goods are quickly printed, this would ultimately reduce the number of workers needed within production. AI and new techniques are slowly making people redundant within an ever-expanding population, a quote below emphases this further

“Boston Consulting Group predicts that by 2025, up to a quarter of jobs will be replaced by either smart software or robots, while a study from Oxford University has suggested that 35% of existing UK jobs is at risk of automation in the next 20 years”.

What future will be printed for us humans?

Thank you mit and bbc for providing us with this information.

3D-Print Your Own TSA Master Keys

In a not too distant future your average person will be able to print their own door keys thanks to the technique of 3D printing. Which is great news for those who have lost there’s, not so good if some bright spark has created and uploaded the plans so that you can print your very own TSA Master Keys.

These keys were designed by the Transportation Security Administration following the 9/11 attacks to ensure the safety of travellers into and around the US by requiring any lock on bags to be branded as “travel sentry approved”. This is to enable airport security staff to carry out searches without having to break the lock or bag. These keys are meant to be kept secret; this was up until an article by The Washington Post which was uploaded in 2014 and conveyed a photograph of seven master keys. The respected news source finally took the pictures down in August 2015, but not before a security researcher by the username “Xyl2k” managed to both create and post 3D printing files of all seven master keys to code site Github.

Do they work? Yep, others have test printed them and it turns out you really can open other people’s luggage, sorry, I meant your own. below is a video which has been uploaded to Twitter concerning this.  This might be going off topic, but the source for this story is The Guardian, who decided to place an image to illustrate the story, what did they go for? see for yourself, the link is at the end of the article, let’s just say it looks to be potentially painful to a poor flyer.

“Xyl2k” has stated that the reason the plans were uploaded was to warn against the security flaws in “master keys” and the potential for them to be exploited as in this case. The laughable aspect concerns The Washington Post and their willingness to exist in a parallel universe, a month before the photos were published, the news source rallied for a so-called “Golden Key” which could be used by tech companies, this theoretical key would be then only used with a court order. The big glaring elephant in the room lies with the very fact that it could be copied and then misused by a wide variety of individuals, organisations and groups.

I do wish people would stop simplifying tech to the point of stupidity, for example, the general consensus from powerful officials is that encryption is bad, so why not simplify it and remove it. There is a philosophy term for this and it is called Occam’s Razor, the principle states that among competing hypotheses that predict equally well, the one with the fewest assumptions should be selected. Therefore, The Washington Post has simplified the many outcomes by suggesting a “Golden Key” to be stored by various tech companies. The only problem with that is the many hackers which include state sponsored virtual safe crackers are smarter than your average David Cameron.

This article has been written on September 11th 2015 but would be published on the 12th, this may seem a bit late when reading this, but I would just like to take a minute to pay respects to the near 3000 people who tragically lost their lives on that day 14 years ago to the most brutal of acts.

“I learned that courage was not the absence of fear, but the triumph over it. The brave man is not he who does not feel afraid, but he who conquers that fear.” –Nelson Mandela

Thank you The Guardian and Github for providing us with this information.