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Augmented Reality Art

2nd May 2013 3 Replies Jonny Hankins

A couple of weeks ago I crossed Grand Island in New York State, a rather desolate place at this time of year near the border with Canada. I was interested in a virtual art installation involving augmented reality, and quite a find it was too.

It turns out that in In September 1825, Major Mordecai Noah founded a city state called Ararat on Grand Island, “a city of refuge for the Jews”. His idea was to create a Jewish homeland. Noah’s dream never came to fruition, until that is a group of academics and artists decided to create a virtual tour of how the city might look today had it been constructed.

Ararat Virtual Monument

The tour involves downloading an app into your smartphone, and travelling to specific areas on the island. When you look through the camera of the phone various structures appear in the view that are not present in reality. There is a copy of a memorial that was designed but has fallen into decay, a synagogue, school, a theme park and various other typical structures. The group also produced postcards, stamps and money, as well as other objects in everyday use in any nation state. There is in fact only one original artefact from that period surviving today, a cornerstone that tells the story of the city’s foundation.

People who would like to take the tour have to download the mobile app Layar, and aim their devices’ cameras at the landscape. The application uses geolocation software to superimpose virtual objects at precise GPS coordinates, enabling the public to see the objects integrated into the physical location as if they existed in the real world.

Money from Ararat

Then you just take the photo and the object appears as if in real life, with your friends next to it if you like. The Mapping Arrarat website explains everything, and hosts a short video that demonstrates the installation in practice. There are also lots of photos of the various structures that show people interacting with a virtual landscape.

Although the computer graphics aren’t entirely convincing I am sure they will very quickly improve and get to the point of looking absolutely real, very much in the way that games have developed in recent years. And an installation of this type looks like a fantastic educational tool to me. Objects can be placed on the landscape and presumably old photos and plans could be used to re-make places and events. Wouldn’t it be interesting to go the the Great fire of London, or walk through antique Rome and come back with a few shots to show the family?

3D printing – a revolution on the horizon?

2nd March 2012 18 Replies Christopher Roberts

What an achievement, this is my (Christopher Roberts’s) 100th post on Technology Bloggers!

Thank you everyone for your support, I love writing here, and that is because of the fantastic community we have created 🙂

3D printers have been around for around 20 years now, however it is only recently that they have really started to show their true potential, both in industrial and now even domestic settings.

Thanks to the recent advancements in 3D printing, CAD designs can be constructed into physical prototypes (and in some cases now even final products) by 3D printers. 3D printers have the potential to revolutionise the way we live our lives, due the variety of possibilities they unlock. 3D printing could revolutionise architecture, product design, industry, education, and so much more!

What exactly is 3D printing?

Most people have access to a normal printer, be it black and white or colour, ink jet or laser. Those sorts of printers however, only work in 2 dimensions, they can print content in the dimension that is left to right, and the dimension that is forward to back. 3D printing adds in another dimension, up and down. Therefore 3D printing means that you can print in height, length and breadth.

Why is 3D printing important?

Some critics have speculated that 3D printing will be as big, if not a bigger revolution to industry, and the way we live our lives, than the internet was. The internet has opened up so many opportunities, but it is believed that 3D printing, could possibly open up even more!

For architects, it will mean that within minutes, they will be able to print on screen prototypes of buildings, so they have a tangible product to show the customer, in virtually no time at all!

For retail, 3D printing could mean that shops hold no stock, and products (less complex ones at first, but branching out in the future) could be made to order, on site! No longer would shops be out of stock, so long as they have material to print on, they can make new products, there and then.

For healthcare, the new printing capabilities will mean that body part replacements can be accurately measured, designed, and then printed. Yeah, printed bones! Just last month, it was publicised that the first 3D printed jaw had transplanted onto the face of a woman from the Netherlands. The jaw was matched to the shape of the patient’s original jaw, using CAD modelling, and then layers of titanium powder were melted into shape by the powerful lasers that make up the 3D printer.

How do 3D printers work?

Different 3D printers work in different ways. Some work by building the object slowly, layer upon layer in an upwards direction, whilst others work by cutting down into a material. The titanium jaw example from above was built by building upwards creating layers upon layers of material, from titanium powder fused together by laser.

What materials can be ‘printed’ on?

Currently you can ‘print’ on plastics, metals, ceramics, glass, and even certain malleable foods (such as sugars and chocolate). In the future that selection of materials is likely to be expanded, and some even believe that we could grow human bone, and then 3D print replacements – that is still a way off at the moment though!

Could you get a 3D printer?

Many firms are looking to capitalise on the decreasing cost of 3D printers, so much so that some companies are now offering (simpler) domestic versions for home use!

One firm selling 3D printers to the domestic market is the New York company MakerBot. Makerbot are offering a basic 3D printer, which can create plasic objects using CAD software, for $1,749 (around £1,100).

In an interview with the BBC, MakerBot’s chief executive Bre Pettis, claimed that the printer is “a machine that makes you anything you need” which is “handy in an apocalypse or just handy for making shower curtain rings and bathtub plugs.”

Mr Pettis also said he hoped to get his printers “into the hands of the next generation because kids these days are going to have to learn digital design so they can solve the problems of tomorrow”.

Another company, (called 3D systems) is offering its ‘Cube’ 3D printers at a similar price to Makerbot, marketing it as a tool to express your creativity. The company is currently working on an app that will allow users to use the Microsoft’s Kinect motion sensor to create objects, simply by moving their hands through the air!

Some of 3D Systems ‘Cube’ printers, prining 3D objects

3D printing is bringing to the global market a fast and increasingly affordable way of turning ideas into reality. No longer will the joys of flexible design be limited to those with CAD jobs and the luxury of a prototype department. There is now a big incentive for people to learn CAD techniques and how to use CAD software. Many countries are now investing in 3D printing technologies, as they can see the potential; IT jobs in the UK and abroad are likely to see big benefits from this.

3D printing is real, and it is here.

So, what do you think about 3D printing, will it revolutionise the way we live our lives – even as much as the internet did? Or do you think that it is a waste of resources, and that it will never really be cost effective enough to be used on a mass scale?