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The introduction of 3D Printing has had a significant impact on the education system.

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3D Printing: What a 3D Printer Is and How It Works

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3D Printing: What a 3D Printer Is and How It Works

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This article gives a good general idea of 3D printing and how it is done. 3D printing creates an object by heating plastic. You start by creating a design for an object on a computer. The technology breaks your design into multiple thin layers. Then, it uses materials such as ceramics, metal, and plastic, which have been melted down, to print the object layer by layer.
One industry which has benefited from the use of 3D printing is that of prosthetics. For example, the Robohand project works on creating prosthetic hands for children who were born without hands.

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A 3D printer cannot make any object on demand like the "Star Trek" replicators of science fiction. But a growing array of 3D printing machines has already begun to revolutionize the business of making things in the real world.

3D printers work by following a computer's digital instructions to "print" an object using materials such as plastic, ceramics and metal. The printing process involves building up an object one layer at a time until it's complete. For instance, some 3D printers squirt out a stream of heated, semi-liquid plastic that solidifies as the printer's head moves around to create the outline of each layer within the object.

The instructions used by 3D printers often take the form of computer-aided design (CAD) files - digital blueprints for making different objects. That means a person can design an object on their computer using 3D modeling software, hook the computer up to a 3D printer, and the watch the 3D printer build the object right before his or her eyes.

Manufacturers have quietly used 3D printing technology - also known as additive manufacturing - to build models and prototypes of products over the past 20 years. Charles Hull invented the first commercial 3D printer and offered it for sale through his company 3D Systems in 1986. Hull's machine used stereolithography, a technique that relies upon a laser to solidify an ultraviolet-sensitive polymer material wherever the ultraviolet laser touches.

The technology remained relatively unknown to the greater public until the second decade of the 21st century. A combination of U.S. government funding and commercial startups has created a new wave of unprecedented popularity around the idea of 3D printing since that time.

First, President Barack Obama's administration awarded $30 million to create the National Additive Manufacturing Innovation Institute (NAMII) in 2012 as a way of helping to revitalize U.S. manufacturing. NAMII acts as an umbrella organization for a network of universities and companies that aims to refine 3D printing technology for rapid deployment in the manufacturing sector.

Second, a new wave of startups has made the idea of 3D printing popular within the so-called "Maker" movement that emphasizes do-it-yourself projects. Many of those companies offer 3D printing services or sell relatively cheap 3D printers that can cost just hundreds rather than thousands of dollars.

3D printing probably won't replace many of the usual assembly-line methods for building standard products. Instead, the technology offers the advantage of making individual, specifically tailored parts on demand - something more suited to creating specialized parts for U.S. military aircraft rather than making thousands of trash cans for sale at Wal-Mart. Boeing has already used 3D printing to make more than 22,000 parts used on civilian and military aircraft flying today.

The medical industry has also taken advantage of 3D printing's ability to make unique objects that might otherwise be tough to build using traditional methods. U.S. surgeons implanted a 3D-printed skull piece to replace 75 percent of a patient's skull during an operation in March 2013. Researchers also built a 3D-printed ear mold that served as the framework for a bioengineered ear with living cells.

The spread of 3D printing technology around the world could also shrink geographical distances for both homeowners and businesses. Online marketplaces already allow individuals to upload 3D-printable designs for objects and sell them anywhere in the world. Rather than pay hefty shipping fees and import taxes, sellers can simply arrange for a sold product to be printed at whatever 3D printing facility is closest to the buyer.

Such 3D printing services may not be limited to specialty shops or companies in the near future. Staples stores plan to offer 3D printing services in the Netherlands and Belgium starting in 2013.

Businesses won't be alone in benefiting from 3D printing's print-on-demand-anywhere capability. The U.S. military has deployed 3D printing labs to Afghanistan as a way to speed up the pace of battlefield innovation and rapidly build whatever soldiers might need onsite. NASA has looked into 3D printing for making replacement parts aboard the International Space Station and building spacecraft in orbit.

Most 3D printers don't go beyond the size of household appliances such as refrigerators, but 3D printing could even scale up in size to build objects as big as a house. A separate NASA project has investigated the possibility of building lunar bases for future astronauts by using moon "dirt" known as regolith.

But 3D printing still has its limits. Most 3D printers can only print objects using a specific type of material - a serious limitation that prevents 3D printers from creating complex objects such as an Apple iPhone. Yet researchers and commercial companies have begun developing workarounds. Optomec, a company based in Albuquerque, New Mexico, has already made a 3D printer capable of printing electronic circuitry onto objects.

The 3D printing boom could eventually prove disruptive in both a positive and negative sense. For instance, the ability to easily share digital blueprints online and print out the objects at home has proven a huge boon for do-it-yourself makers.

But security experts worry about 3D printing's ability to magnify the effects of digital piracy and the sharing of knowledge that could prove dangerous in the wrong hands. Defense Distributed, a Texas group, has already begun pushing societal boundaries by working on the world's first fully 3D-printable gun.

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3D Printing: What a 3D Printer Is and How It Works

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A 3D printer cannot make any object on demand like the "Star Trek" replicators of science fiction. But a growing array of 3D printing machines has already begun to revolutionize the business of making things in the real world. 3D printers work by following a computer's digital instructions to "print" an object using materials such as plastic, ceramics and metal.

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As it evolves, 3D printing technology is destined to transform almost every major industry and change the way we live, work, and play in the future.

For better or worse, the 3D printing industry is poised to transform nearly every sector of our lives and jumpstart the next industrial revolution. Sound like a hyperbole? We've compiled a list of 10 major impacts the 3D printing ecosystem will have on businesses, consumers, and the global economy.

If you're just diving into the world of 3D printing, first take a look at my introduction on 3D printing industry basics to quickly get up to speed: 10 facts on 3D printing: Understanding tech's next big game-changer.
SEE: 3D printing: A primer for business and technology professionals
1. Massive environmental impacts

Traditional manufacturing is often wasteful and dirty. In many ways, 3D printing lessens that waste and the carbon footprint manufacturing has on the Earth.

Fewer wasted materials: Only the raw materials needed to create the object-be it plastic filament, metal powder, or carbon fiber-are used. Using biodegradable PLA plastic filament in fused deposition modeling printers like MakerBot is a good start.

Possibility of longer life spans: Product parts can be replaced with 3D printing (or at least, that's the idea for the future), so the entire product doesn't have to be thrown away and replaced each time it malfunctions.

Less transport: Products often travel across many continents to get to their final destination. With 3D printing, the production and assembly can be local. Raw materials are the only things that will ship, and they take up far less space.

Fewer unsold products: If a company makes a product, the ones that are discontinued or not sold often end up piling up in landfills. 3D printing can improve this because companies can make them as needed.

This is all great in theory, but research shows 3D printers themselves have inefficiences that make them less environmentally friendly. An inkjet 3D printer wastes 40 to 45 percent of its ink. And if a printer isn't turned off or unplugged, it uses an excessive amount of electricity. As the printers become more accessible, manufacturers will need to figure out how to improve these issues.

2. Creating a new art medium

The "maker" movement is getting more niche-now we can call it the artisanal movement. 3D printers are being used to create new types of modern art, like this 3D headdress created by artist Joshua Harker, which debuted at 3D Printshow in New York City. The printers can also recreate pieces that aren't accessible to everyone around the world, which helps museums. For instance, the Van Gogh museum in Amsterdam has teamed with Fujifilm to recreate 3D replicas of several Van Gogh paintings.

3. Innovation in education

A few months ago, MakerBot announced MakerBot Academy, a crowdfunded plan to get a 3D printer into every school in America. "It can change the whole paradigm of how our children will see innovation and manufacturing in America," MakerBot CEO Bre Pettis said in the announcement. The company also recently announced a plan to turn colleges and universities into MakerBot Innovation Centers. Starting with State University of New York at New Palz, the centers are equipped with 30 3D printers along with several 3D scanners to help train engineers, architects, and artists and increase motivation for growth in the industry.

4. 3D printing in zero-gravity

One of the most logical uses for 3D printing is printing parts, tools, and other gadgets for astronauts while they're in space. It can also help accelerate the building of parts for the International Space Station. To address these problems, Made In Space was formed by a group of space veterans and 3D printing enthusiasts. They have partnered with NASA's Marshall Space Flight Center to launch the first 3D printer in space. It will manufacture parts in zero-gravity, and the hope is to make space missions more self-sufficient.

On a related note, an engineer won a grant from NASA last year to prototype a machine that will print food that's better than the freeze-dried stuff astronauts normally eat. Watch the 3D printer make a pizza below:

5. Revolutionizing mass manufacturing

Mass production is the biggest challenge in 3D printing, but with the adoption of large-scale printers and rapidly evolving technology to produce parts faster, the printers will completely disrupt traditional manufacturing in many industries:

Food: Anything that exists in liquid or powder form can be 3D printed, so naturally, printed food is one of the next big conversations.

Military: The machinery for the military is often customized and replacements must be made quickly. A 3D gun has already been printed, so it's only a matter of time before the technology catches on in this industry.

Electronics: The size, shape, and materials used to make electronics make this industry a natural candidate for 3D printing.

Toys: Home 3D printers and open source design will change the way children create and play.

Automotive: This industry is already utilizing the technology-Ford reportedly uses 3D printing to test parts. High-end and smaller auto companies will benefit first, though 3D printing could improve the efficiency of making replacement parts for any company.

6. Changing medicine and healthcare

Bioprinting is one of the fastest-growing areas of 3D printing. The technology uses inkjet-style printers to make living tissue. Organovo, the most well-known company who does this, plans to commercialize 3D-printed liver tissue sometime this year. They have also partnered with the National Eye Institute and the National Center for Advancing Translational Sciences to print eye tissue.

Researchers at Human Methodist Research Institute said they have created a more efficient way to create cells. Called Block Cell Printing, this process allows 100 percent of the cells to live instead of the 50 to 80 percent that normally survive during the current process. All of this naturally raises questions about the development of complex organs, so bioprinting is destined to turn into a big debate due to moral, ethical, and political concerns.

7. Transforming the home

Humans love their home conveniences, and home 3D printers are becoming smaller and more affordable- MakerBot's smallest printer is just over $1,300. People can print custom jewelry, household goods, toys, and tools to whatever size, shape, or color they want. They will also be able to print make replacement parts right at home, rather than ordering them and waiting for them to be shipped. According to research firm Strategy Analytic s, home 3D printing could evolve into a $70 billion industry per year by 2030.
SEE: Photos: 3D printers and the amazing and quirky things they make
8. Reaching disconnected markets worldwide

Developing countries are often completely disconnected from global supply chains for even the most basic products, but 3D printing has the ability to bring them into the loop. The best example of this is Austin-based startup re:3D, which had a hugely successful Kickstarter campaign last May with Gigabot, an industrial-sized, affordable printer designed to work in developing countries. The company has a localized presence in Latin America, specifically partnering with StartUp Chile, a Chilean government program that empowers local tech entrepreneurs. The Gigabot will be used for many of the projects in Chile, like 3D design internships, manufacturing clothing, and experimenting with printing using recyclable materials.

Another way 3D printing can help developing countries is through partnerships with 3D printing researchers. For instance, many countries in the developing world are in dire need of prosthetic limbs, but don't have access to the technology or the education that is required to make their own. A Canadian professor is creating a way to make a prosthetic limb that is about 80 percent as good as one that could be made by hand. The lab is sending the prosthetics to disabled Ugandans.

9. Impacts on the global economy

The 3D printing industry will have far-reaching effects on the global economy. McKinsey Global Institute recently released a report that said 3D printing will cause major disruptions in the global economy by 2025. The analysis firm predicts it will bring about new product development cycles as the systems become cheaper. More companies will adopt the technology and product creation will focus on client feedback and customer-centered design. The industry is also reducing the cost of of entry into markets, allowing very niche businesses to pop up everywhere.

China is already investing in the technology to rival this rapid growth rate in the U.S. and Europe. In June 2013, the country announced a gigantic 3D printer they claimed was the world's largest at the time at 1.8 meters in diameter, and there are rumors they have plans to build even larger ones. It's not clear what impact the technology will have on the economy yet, but it could give China a competitive edge in domestic production. Because 3D printing promotes localized production, this will also affect China's current large-scale manufacturing industry.

10. Intellectual property threats

Sharing 3D printing schematics on websites like Thingiverse and Shapeways seems easy enough, but free designs are bound to cause issues with intellectual property as 3D printing becomes more mainstream. Most of the designs are unpatented, so they can be copied repeatedly and sold by anyone. Expensive or designer objects can also be reverse-engineered or replicated and sold at a cheaper price.

Now, established companies are starting to go after users of these sites, arguing that they are infringing on copyright or violating intellectual property laws. However, most of these designers are building upon original designs, making them better, or localizing products to better suit the needs of people in their area. It will be an ongoing conversation. The industry will have to figure out how to make sure large corporations don't squash entrepreneurs and designers in their fight to protect copyright laws.

Also see

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10 industries 3D printing will disrupt or decimate

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As it evolves, 3D printing technology is destined to transform almost every major industry and change the way we live, work, and play in the future. For better or worse, the 3D printing industry is poised to transform nearly every sector of our lives and jumpstart the next industrial revolution.

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One example of the positive effect is lowered manufacturing cost through recycled and other local materials, but the loss of manufacturing jobs could hit many developing countries severely, which would take time to overcome.

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Shop at B&H: http://bit.ly/BH3DPrinters B&H is pleased to announce that we now sell a full line of 3D printers, from manufacturers such as Makerbot, Flashforge, and 3D Systems. In this video, we present a primer on 3D printing. For more, visit our website or see our extensive display of 3D printers in action in our New York City SuperStore.

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Meet The House That Was 3D Printed In 24 Hours

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3D Printing is used in the medical field to create prosthetic parts much more quicker and efficiently

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3D Printed food

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These 3D Printers Make Pizza and Candy. Yum? - Food 2.0, Episode 6

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What is 3D Printing and how does it work?

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https://www.youtube.com/watch?v=O2thSsQrZUM

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3D Printing starts with making a virtual design of the object you're creating (like a blueprint). However, there needs to be a set file for the object in order to successfully do the 3D printing. In the process, the object is printed through thin layers and takes an extensive amount of time to complete.

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3D Printing starts with making a virtual design of the object you want to create. This virtual design is for instance a CAD (Computer Aided Design) file. This CAD file is created using a 3D modeling application or with a 3D scanner (to copy an existing object). A 3D scanner can make a 3D digital copy of an object.

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What Is 3D Printing and How Does It Work? | Mashable Explains

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3D printing is changing the way we produce objects, from tools and toys, to food, and even body parts. It's a tech revolution taking place in homes across the world. But how does it work exactly, and what makes it so efficient? Mashable explains the basics of 3D printing technology.

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3D Printing is the idea of creating an object with a printer when the thing you are printing is something you don't already have. First you put in the computer what you want and then multiple layers are stacked on top of each other until the product is finished. You can make clothes, utensils, or even prosthetics and organs.

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Drexel Professor Fights Cancer With 3-D printing

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Drexel Professor Fights Cancer With 3-D printing

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http://drexel.edu/research-enterprise/impact/fight-cancer-3d-printing/

Students at Drexel University made 3-D tumors that were easier to look at rather than a 2-D picture. They were able to closer look at tumors and tissues. This made it easier to figure out how cancer can start and how it can be stopped. A professor made a 3-D version of a cell with a lot of detail. Students can closely look at a cancer cell which, in the long run, can help find a cure.