Scientists build a low-cost, open-source 3-D metal printer
2013 12 03

From: Phys Org

OK, so maybe you aren’t interested in making your own toys, cellphone cases, or glow-in-the-dark Christmas decorations. How about a brake drum?

Until now, 3D printing has been a polymer affair, with most people in the maker community using the machines to make all manner of plastic consumer goods, from tent stakes to chess sets. A new low-cost 3D printer developed by Michigan Technological University’s Joshua Pearce and his team could add hammers to that list. The detailed plans, software and firmware are all freely available and open-source, meaning anyone can use them to make their own metal 3D printer.

Pearce is the first to admit that his new printer is a work in progress. So far, the products he and his team have produced are no more intricate than a sprocket. But that’s because the technology is so raw. "Similar to the incredible churn in innovation witnessed with open-sourcing of the first RepRap plastic 3D printers, I anticipate rapid progress when the maker community gets their hands on it," says Pearce, an associate professor of materials science and engineering/electrical and computer engineering. "Within a month, somebody will make one that’s better than ours, I guarantee it."

Using under $1,500 worth of materials, including a small commercial MIG welder and an open-source microcontroller, Pearce’s team built a 3D metal printer than can lay down thin layers of steel to form complex geometric objects. Commercial metal printers are available, but they cost over half a million dollars.

His make-it-yourself metal printer is less expensive than off-the-shelf commercial plastic 3D printers and is affordable enough for home use, he said. However, because of safety concerns, Pearce suggests that for now it would be better off in the hands of a shop, garage or skilled DIYer, since it requires more safety gear and fire protection equipment than the typical plastic 3D printer.

While metal 3D printing opens new vistas, it also raises anew the specter of homemade firearms. Some people have already made guns with both commercial metal and plastic 3D printers, with mixed results. While Pearce admits to some sleepless nights as they developed the metal printer, he also believes that the good to come from all types of distributed manufacturing with 3D printing will far outweigh the dangers.

In previous work, his group has already shown that making products at home with a 3D printer is cheaper for the average American and that printing goods at home is greener than buying commercial goods.

In particular, expanded 3D printing would benefit people in the developing world, who have limited access to manufactured goods, and researchers, who can radically cut costs of scientific equipment to further their science, Pearce said. "Small and medium-sized enterprises would be able to build parts and equipment quickly and easily using downloadable, free and open-source designs, which could revolutionize the economy for the benefit of the many."

"I really don’t know if we are mature enough to handle it," he added cautiously, "but I think that with open-source approach, we are within reach of a Star Trek-like, post-scarcity society, in which ’replicators’ can create a vast array of objects on demand, resulting in wealth for everyone at very little cost. Pretty soon, we’ll be able to make almost anything."

Article from: phys.org




Introducing metal 3D printing to the world as a viable solution for fully functional firearm prototypes.






Related Articles
First 3D-printed rifle successfully fires 14 shots
3D Printing Bananas and Mushrooms for Astronauts
Terminator 2-style liquid metal can now be 3D printed
Amputee Duck Gets A Leg Up With New 3D-Printed Prosthetic Foot
3D Printing Could Aid Deep-Space Exploration, NASA Chief Says
US government orders removal of Defcad 3D-gun designs
Click, Print, Gun: The Inside Story of the 3D-Printed Gun Movement
3D Bio-Printed Meat is No Longer Science Fiction
3D Printing To Help Creation of Artificial Human Organs
A 3D Printer That Generates Human Embryonic Stem Cells
This Child Has A Robot Hand Made With 3D Printers
3D PRINTED PASTA & CHOCOLATE?


Latest News from our Front Page

Slaves of Charleston - Beyond Wealth of Jewish South Carolina
2014 09 15
Founded in 1749 in downtown Charleston, South Carolina, the Beth Elohim Synagogue is one of the very earliest synagogues in America. While other synagogues and congregations are also now a part of Charleston city life, Beth Elohim Synagogue is the oldest one in the area and serves as the repository for certain historical artifacts of Jewish life in the city. ...
Martian meteorite yields more evidence of the possibility of life on Mars
2014 09 15
A tiny fragment of Martian meteorite 1.3 billion years old is helping to make the case for the possibility of life on Mars, say scientists. The finding of a ‘cell-like’ structure, which investigators now know once held water, came about as a result of collaboration between scientists in the UK and Greece. Their findings are published in the latest edition ...
Swedish Surprise: Anti-Immigration Party Surges...
2014 09 15
Swedish prime minister Fredrik Reinfeldt Sunday’s election in Sweden was supposed to be a cakewalk for the Left. The Drudge Report ran a piece yesterday from the Guardian entitled: “Free-market era in Sweden swept away as feminists and greens plot new path.” The paper, a left-wing British outlet, published the piece the day before the election; it proved to be, well, ...
UK School to fingerprint students to ‘monitor their diets’
2014 09 15
STOURBRIDGE, England – A school is implementing a biometric system to better track what students are eating each day. The Express & Star reports students at Redhill School in Stourbridge, England will be fingerprinted in an attempt to reduce lunch lines and “monitor pupils’ diets.” The system requires pupils to press a finger against a machine which converts the print into ...
U.S. State Department Orders 160,000 Ebola Hazmat Suits
2014 09 15
The U.S. State Department has ordered 160,000 Hazmat suits for Ebola, prompting concerns that the federal government is anticipating the rapid spread of a virus that has already claimed an unprecedented number of lives. In a press release posted by Market Watch, Lakeland Industries, a manufacturer of industrial protective clothing for first responders, announced that it had signaled its intention “to ...
More News »