3D printing – a revolution on the horizon?

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).

MakerBot's 3D PrinterIn 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!

3D Systems 3D printer - Cube

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?

Are user generated reviews reliable?

18 Replies Jonny Hankins

The current March to April issue of National Geographic Traveler magazine has an article about user generated reviews that raises some interesting issues. I looked at the commercial invasion of the blogging world in one of my previous posts, but here author Christopher Elliott raises the issue of interested parties posting positive comments about their own businesses and negative ones about others, raising their star status and damaging others.

I was particularly drawn to this article because it addresses a problem faced by frequent travelers, and having spent a couple of years all in all on the road with all of my worldly belongings on my back I can relate to the problem.

Local offering help to lost travellers

Ask a local for advice and he looks it up on his iPhone

When you are out there alone, who better to ask for advice than fellow travelers? Many look to the internet for recommendation, and here lies the problem, lack of competition. There are really only 2 large websites of reference, Yelp and Travel Advisor, so it is relatively easy to either build up a profile or destroy somebody else’s using different user names and computers.

Within the industry an understanding of the problem is widespread, and both companies named above defend their positions stating that they have vetting procedures to catch out the bogus reviewers. It is very telling however that after a British Advertising Standards Agency investigation, Trip Advisor changed its slogan from “reviews you can trust” to “reviews from our community”, the implications are obvious.

The broader implications are vast too, many people read reviews before choosing a dentist or a school for their kids, and a bit of underhand behaviour could easily destroy somebody’s reputation.

My personal opinion is that these problems are representative of wider issues of internet governance. They are essentially born out of monopoly, the democratizing power of the internet and peer to peer communication usurped by business interests and competition. An infiltration of commercial interest into a non commercial ideology, that of offering advice to someone who finds themselves in a position that you were once in, becomes unreliable.

Steps to Take Before Throwing Away Your Old PC

13 Replies Daniela

In 2010, the FTC recorded over 250,000 complaints of identity theft in the United States. While many identity thieves still get their information from your paper mail, a stolen purse or wallet, or hacked files online, more and more are starting to glean sensitive information from the hard drives of old computers. If you’re getting ready to toss out your desktop or laptop in favor of a newer model, take these steps to protect yourself from identity theft.

What information might be stored?

Not sure it’s worth all that work to wipe your hard drive? After all, you don’t keep a ton of important information on your computer, so what could a hacker possibly find anyway; and if you’re just donating your computer or selling it for cheap, what are the odds that an identity thief is going to get his hands on it?

The problem with this line of thinking is that often times, your computer has stored information that you don’t even know it has stored.

Common information stored on computers includes account numbers, credit card numbers, passwords, registration keys for software programs that you use, medical information, addresses, and even tax returns – which contain pretty much all the personal information necessary for a someone to apply for a credit card or bank loan in your name!

Keep in mind that many identity thieves will actually buy a used computer – or even steal a donated one – in the hope of gleaning such personal information. This information can be worth thousands of dollars to them and can create a huge headache – and financial problems – for you.

How to get rid of the data

So, before you sell your computer or donate it to your local school system, take these steps to get rid of the data for good:

1. Don’t count of just deleting the files. While you’ll want to delete the files from your computer, this is just the first step to take. Identity thieves are often experts at getting deleted information from hard drives by using specialized software.

2. Save any files you want to keep. Before you wipe your hard drive, you will, of course, want to save any files you want to keep. You can transfer your data to a new computer, burn it to a CD, put it on a USB drive, or put it on an external hard drive – a particularly good option if you need to store a ton of files or information.

3. Use a utility program specifically meant to wipe your hard drive. Local tech stores will sell utility programs meant for this purpose that match up with your specific operating system. The best idea is to get a program that will overwrite or wipe the hard drive several times instead of just once, and you’ll definitely want a program that wipes the entire drive.

If you know your computer has particularly sensitive information on it and you don’t trust a utility program to get rid of the information, you can always destroy the hard drive physically.

Businesses in particular, often use hard drive shredding services, as their computers tend to have lots of personal information on both employees and customers of the business.

A hard disk shredder

A hard drive being shredded

Once you shred the hard drive, you can simply sell or donate the rest of the computer without it, and the new owner can then completely replace the hard drive.

Watching for identity theft

Even if you are careful to destroy information on your computer before you sell or donate it, it’s a good idea to be wary of potential identity theft.

Check your credit reports regularly to ensure that everything is accurate. Credit reports are normally the first place you’ll see evidence of identity theft when new accounts pop up that you didn’t open. If you do think you’ve been a victim of identity theft, get identity theft assistance as soon as possible.

Report the problem to the credit reporting bureaus, who will place a fraud alert on your account. Then close the new, fraudulent accounts. Finally, report the fraud to the Federal Trade Commission and your local police department.

If you’ve taken steps to protect your personal information from being stolen, you may never have to deal with the problem of identity theft, but it’s always a good idea to be aware of what you should do if your identity should be stolen.