Category Archives: News
Color Blending with Consumer 3D Printers Produces Amazing Results
Consumer 3D printers, like MakerBot and the Cube, cost over $1,300 and can only print in one or two colors. If you want multi-color printing, you need to use a commercial grade 3D printer that costs $20,000 or more.
Well, electrical engineer and hobbyist Richard Home, decided to branch out and design his own method of “color blending”, a technique that turns a basic 3D printer into something much more capable. He started with the open-source RepRap design and developed his own extruder design, which he coined “RichRap.”
As featured in Wired:
Here’s how it works: The RichRap has three extruder motors feeding into one nozzle, or hot end. Each motor spools plastic filament into the hot end where it is melted, then deposited on a build surface. An operator could load a RichRap with red, yellow, and blue plastics and generate green parts by mixing the yellow and blue, or purple by mixing red and blue.
Watch the videos below to see Richard discuss his design and show off some of his color prints.
3D Printing iPhones in America: Disrupting Foxconn’s Assembly Line
Forbes contributor Baizhu Chen writes about economics with an emphasis on the US and China. He recently wrote an article about how the US could take back manufacturing from China and the implications of that move.
This article was a reversal on an earlier stance where he said that US doesn’t make iPhones because we don’t want to. Here was is original logic:
America does not produce iPhones here because we, the average middle-class American family, demand that Apple outsource its production to China. The 10 largest shareholders of Apple are all either mutual funds or institutions. The largest shareholder is Fidelity, and the second Vanguard. If Apple is not able to generate good returns for the average American, we will punish these mutual funds by moving our retirement money to somewhere else. So who decides to locate the manufacturing bases of Apple, Dell, and Nike to China or other countries? Average Americans, who seek high returns on their investments.
Mr. Chen published a revised point of view where he explained how 3D printing technology will be the catalyst for disruption of this traditional low-wage assembly line work.
We can make iPhones in America, but not under today’s cost structure and technology. Lining up thousands of American workers in the 20th century style assembly line, doing repetitive work day in and day out, is not going to win manufacturing jobs back to America from developing nations. Making iPhones in America would require some great American creativity and productivity. This will become increasingly possible given the emerging new technology, especially the additive manufacturing which uses 3D printers turning layers of materials into solid objects.
But, a 3D printed manufacturing concept diverges from the classic scale economy model and becomes de-centralized.
3D printing technology overthrows the notion of a scale economy. Putting thousands of 3D printers in the same location will not improve cost competitiveness over scattering them in different places. Future manufacturing will be a very de-centralized process. 3D printers have become so cheap (personal 3D printers cost as low as less than $1000) that in the future, consumers can even produce their shoes, toys, kitchen wares at homes or a shop nearby. They can download the designs from the internet, tweak according to their tastes, and change the sizes for their own purposes. Future manufacturing no longer needs thousands of workers doing repetitive jobs in the same location.
The de-centralization of manufacturing therefore removes the need for hubs like China to produce everything.
The widespread use of 3D printing technology in manufacturing could lead to de-globalization of manufactured goods. In the past century, we have seen a globalization process in which companies allocate production sites in countries that make the most sense in terms of costs, far away from consumers. In this process, China and other developing nations have become the manufacturing hubs, producing products for consumer nations like the United States. The use of 3D printing technology will counter this globalization process, and could pull manufacturing away from China or other developing nations back to countries where products are consumed.
Ironically, now that low-wage jobs overseas can be replaced by local technology, high-skill design jobs can now be globalized and shipped overseas.
While manufacturing of goods could be localized with additive manufacturing, the professional services including engineering, design and intellectual protection will be globalized. This has a profound impact on redistribution of income among nations. America, leading in additive manufacturing technologies, will undoubtedly be the biggest winner in this process. American companies, not only can print “things” in local printing shops in America, but also in China for Chinese consumers using American designs. This could even reverse the trade balance between America and China.
Which means that America will not see a resurgence in assembly line jobs. To the contrary, the US will now face competition for skilled digital engineering and design jobs, and tomorrow’s engineers need to be trained with this in mind.
However, those hoping this process will generate a large number of manufacturing jobs in America will be disappointed. The additive manufacturing will not bring back 20th century assembly jobs to America. What is needed more for America’s future is engineers, designers, and IP lawyers. Politicians arguing for solving unemployment problem by bringing back iPhone assembly jobs are looking in the mirror backward. They should be moving forward by focusing on policies to improve our education to produce talents for future manufacturing.
Read the full article by Mr. Chen at Forbes.
Top 3D Printing Headlines Last Week: Fashion, Tech, Music, Toys, Video
A roundup of the top news On 3D Printing brought you from September 17 to September 23.
Friday, September 21
Pimp My Fisher-Price: 3D Printing Rock Tunes on Vinyl Records
With iPods and iPads today, most kids probably don’t even know what a “record” is. Back in 1971, vinyl was the medium for listening to music, and Fisher-Price naturally sold a kids record player which would produce sound by reading plastic discs. The only songs available on this player were kids’ songs, of course, until a 3D printing enthusiast figured out how to print his own records.
Instructables user Fred27 detailed his method:
A little while ago I stumbled across an old toy record player made by Fisher Price in the 1970s, and decided that what it really needed was some new tunes. I got thinking about it, reverse engineered the way it was encoded, got out my trusty CNC mill and created an Instructable all about it right here.
I was blown away by the response to it, but I only know of one person who had a goat milling their own. Whilst the mill did a great job (and I explained how to convert your own too), a CNC mill is not the sort of thing that everyone has access too.
So as promised, I decided that a 3D printed version would follow to give more people a chance to get creative. More people have a 3D printer or have access to one. And even if you don’t, once you have the STL file there are plenty of places that will bring your creation to life and mail you a physical copy.
I thought about just adding to my previous Instructable, but to be honest it’s only the music editing side of things that’s the same. Everything else from the file creation to the production is very different. I thought a new Instructable would be neater.
Fred27 actually created his own software to map music to vinyl.
Once you have the CAD file, you can either print on your 3D printer or order from a 3D printing marketplace.
Below is a video of the Fisher Price record player using one of the 3D printed records to play Stairway to Heaven and other tunes.
If you want to buy some of Fred’s records, head over to Shapeways to pick up Stairway to Heaven or Star Wars on a 3D printed record.
3D Printing Crosses Academic Boundaries at Universities
3D printing has historically been seen as a tool for engineers and designers to rapidly prototype. Now the technology is crossing academic boundaries at universities and being adopted by various disciplines.
The Chronicle of Higher Education reported on this trend.
Colleges and universities are finding more and more uses for 3-D-printing technology, which has grown in sophistication and fallen in price in recent years. Some proponents argue that nearly every discipline could benefit from the ability to easily create objects from customized designs. “We want this for humanities, for social sciences, for bio people, for law school, so what’s interesting about 3-D printing is that it touches on all these areas,” says Hod Lipson, a professor of mechanical engineering and of computing and information science at Cornell University, who is creating a 3-D-printing course for nonengineers.
What are some examples of students using 3D printing across disciplines?
Art: “When an art student at the University of Washington wanted to bring her vision of a futuristic animal to life last semester, she didn’t draw, paint, or sculpt it. She printed it—in three dimensions—using a machine that rendered her design from powdered bone.”
Medical: “Consider the work of Brandon Bowman, 28, a former blacksmith who is now studying at Washington. He is working with a hand surgeon to see if the technology can print body parts. Years ago Mr. Bowman lost the tip of a finger in a metal-shop accident. A friend told him to leave the wound alone and let the nub of flesh grow back on its own. It did, and he has been interested in regenerative medicine ever since.”
Paleontology: ’Kenneth Lacovara, a biologist at Drexel University uses the campus lab to print copies of dinosaur fossils, which he lets his students handle. “I can only have so many undergraduates in my lab, but I can give thousands of students the experience of what it’s like to hold a dinosaur bone and see the richness of detail contained in an ancient fossil,” says the associate professor. His students can’t go on the actual digs, but the printer has helped him replicate the experience.’
How far can 3D printing go?
University of Washington mechanical engineering professor Mark Ganter thinks that 3D printing will continue to proliferate.
“With 3-D printers, they’re either going to get to the ubiquity of Kinko’s, or lots of people are going to have them in their house,” he says.
Mr. Ganter sees 3D printing as a way to hook younger students on engineering fields. This year his class printed 8,000 edible cookies for an engineering open house for visiting junior-high and high-school students. They were more excited by the printed cookies than by anything else, he says.
The Washington professor’s students have also used the technology to print a device for NASA that, when sent into outer space, would store fuel in zero gravity. If institutions can develop early interest in engineering, and maintain sufficient access for kids to nurture this interest, he says, “soon we are going to try to figure out how to print on the moon.”
Read the full article at Chronicle of Higher Education.
Students 3D Printing photo by cogdogblog used under Creative Commons license.
