3D printing – a revolution on the horizon?

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?

How to choose the right laptop for you

After my recent post on how to be a smart online buyer, I thought why just help people get a good priced product, as a good price doesn’t always mean good value.

As a laptop is something most people probably buy online, and as it is also something that often costs a lot of money, I thought why not help people choose which is best for them. Maybe in the future I will do the same for mobile phones, digital cameras and who knows what else!

What is it going to be used for?

The main thing you have to work out is what is the laptop going to be used for? Do you need something that can cope with 3D HD gaming, or are we just looking at text editing, emails and the web?

The more you want to be able to do with your laptop, the greater ability it will need to have, meaning that it is more likely to need a higher spec, and therefore probably a more costly speck.

I only really use the internet

If most of the stuff you do is online, then you probably don’t need a very high spec laptop – just a good internet connection. If you laptop is mainly used for blogging using an online system like WordPress, Blogger or TypePad, playing your favourite online games, typing emails using an online webmail service, and socialising using Facebook and Twitter (I should point out other social media sites are available ;-)) then you might want to look into Chromebooks – or low spec laptops.

The Google Chrome LogoGoogle says that Chromebooks are ‘nothing but the web.’ They run a 100% cloud based operating system, meaning that all your data, settings etc. are stored online, safe and secure in the cloud. This means they only take secconds (literally 8 or 9) to boot up, meaning you are off and working/playing in an instant.

Here is how Google describes Chromebooks:

“Chromebooks are built and optimised for the web, where you already spend most of your computing time. So, you get a faster, simpler and more secure experience without all the headaches of ordinary computers.”

Chromebooks are very fast as they need no virus protection, have no background processes slowing them down, neither does it need updates, since all of that happens in the cloud, basically everything runs from the browser.

If you don’t want a Chromebook, you probably only need a really low spec laptop, so that could be very cheap. Regarding operating system, if you like pretty styles, then go for Windows7, as that it stable and also ‘looks good’ avoid Vista, especially on low spec laptops, as it can really slow them down – XP and 2000 are also good.

It’s going to be a family laptop

If you are looking for a typical family laptop, where some of the kids will want to play flash games, but they will also need to do their homework, and the adults want to be able to check their emails and social profiles for updates, then you are probably going to be looking for a pretty standard PC.

To make sure it is quick and doesn’t slow down you would probably benefit from a dual-core processor. Dual-core means that the computer possess more than one CPU. Extra CPU’s means that you can process data faster, therefore your laptop will run quicker.

In order for your extra CPU’s to be effective, it would be a good idea to have at least 1 gigabyte (gb) of RAM, and preferably 2.

Windows7 would be perfect for family usage, as would XP. 2000 may look and feel a little dated, and Vista is likely to cause you a lot of grief!

I edit photos and run games and watch online media

If you like to have a lot open, and often are found editing photos, playing CPU intensive games, and watching HD videos, then you probably need a pretty powerful processor, along with a decent sized hard disk, a good amount of RAM, and a dedicated graphics card. Screen display resolution is also likely to be important, as if you like HD, but have only a standard screen, you can’t display HD.

Intel make a type of processor called i3 and another called i5. These are very well designed processors and run very well. If you see i3 or i5 on a PC, it is probably going to be a good one. Photo editing and gaming can be very hard disk space hungry tasks, so I would recommend getting at least a 250gb (preferably a 360gb) hard disk. With a laptop, short of getting an external hard drive, there is no easy way of expanding the amount of space you have.

This type of user would benefit best from 4gb of RAM, and a dedicated graphics card – this basically means that the graphics card is a separate component within the PC, which has it’s only memory and processing unit.

I do all of the above and more, and I do it all at the same time!

If you can never seem to find a laptop that is powerful enough for you there are a few options available to you – sadly, they area all rather expensive ones!

The first would be to get a powerful MacBook. MacBooks are notorious for their high specs, stable operating systems and therefore lack of time spent loading.

The second would to be to buy a quad-core i7 spec laptop. Most MacBooks run off core i5 and i7 processors anyway, however Windows also performs very well when being run on a core i7 machine.

The intel Core i7 proccessor badgeA dedicated graphics card is a must for this type of user, and 4-8 gig of RAM is recommended. Depending on how long you want to keep your laptop will determine how big your hard disk will need to be. My advice would be that if you are likely to want to keep the same laptop for any more that 4 or 5 years, get a terabyte hard disk.

Another option would be to have a custom built laptop. These can sometimes work out cheaper, but you need to be cautious, as if you, or whoever is building the laptop aren’t 100% sure of what’s what, then you could face compatibility issues.

Certain processors work better with certain types of RAM, certain operating systems require certain types of graphics cards, and certain hard disks are needed in order to be compatible with the rest of the machine. Basically certain part of the laptop will naturally work well together, however if you custom build your laptop, you might have 8gb of RAM, but the problem is, your processor finds it hard to deal with that type of RAM.

Other things to consider

When choosing a laptop, it is also important to consider things like who it’s made by. Different firms have different reputations for the quality of their laptops, but also consider the quality of their customer service. If their automated calling systems drive you mad, then it may be wise not to buy one of their laptops.

Furthermore, consider your other devices like cameras and phones when buying a new laptop. Some devices may not be compatible with your operating system, or you may need to get some new camera cables if your current devices can’t plug in to your new laptop.

Connectivity is another important factor: does your laptop have inbuilt Bluetooth, Wi-Fi or infrared? If you are forever connecting to mobile Wi-Fi, or your phone to download pictures, then it would be useful to have such functions inbuilt.

An inbuilt webcam and microphone can be very handy if you are often using programmes like Skype to talk to friends on the internet.

Also don’t forget the battery. If you barely use your laptop when you are away from a plug, then the battery is probably not of much importance to you, however if your laptop battery is important to you, you may want to avoid second hand laptops. Laptop batteries from second hand machines can often be less powerful and last less time than a normal battery would.

The right laptop for you

Getting the right laptop for you can be crucial in making sure that you get value for money, as a laptop with spare capacity is a waste of money, as is a laptop that cannot perform to the standard you need.

If you need any more help in choosing the right laptop for you, drop a comment below 🙂