



3-D printers can create models and prototypes, replicas of your head, even living tissues—and at Lehman College, they reproduce and reconstruct ancient fossils
By Sophie Bushwick | September 19, 2011 | 4
Lehman College graduate student Claudia Astorino operates the Objet Eden260 3-D printer [ right ]. The cartridges of printing resin (a material that will harden into a rigid blue plastic-like material) and support material, which together form the basis of the printed products, sit on the table behind the printer, and the beige box at left houses a water jet used to clean support material off products when they first emerge from the printer....[More]
Lehman College graduate student Claudia Astorino operates the Objet Eden260 3-D printer [right]. The cartridges of printing resin (a material that will harden into a rigid blue plastic-like material) and support material, which together form the basis of the printed products, sit on the table behind the printer, and the beige box at left houses a water jet used to clean support material off products when they first emerge from the printer. [Less] [Link to this slide]
The tray shown on the left monitor is a digital representation of a physical tray, located in the body of the 3-D printer. Meanwhile, the monitor on the right displays data about the printer, such as whether it needs a fresh printing resin cartridge....[More]
The tray shown on the left monitor is a digital representation of a physical tray, located in the body of the 3-D printer. Meanwhile, the monitor on the right displays data about the printer, such as whether it needs a fresh printing resin cartridge. [Less] [Link to this slide]
Open a computer file, and this digital mandible appears on the 3-D printer tray at the Lehman College 3D Virtual and Solid Visualization Lab. A user can rotate, move and blow up or shrink down a jawbone, for instance, until satisfied that it's ready to print....[More]
Open a computer file, and this digital mandible appears on the 3-D printer tray at the Lehman College 3D Virtual and Solid Visualization Lab. A user can rotate, move and blow up or shrink down a jawbone, for instance, until satisfied that it's ready to print. [Less] [Link to this slide]
The wire-covered printhead at left moves back and forth over the printer tray at center, depositing resin layer by layer to build up a replica of the digital bone....[More]
The wire-covered printhead at left moves back and forth over the printer tray at center, depositing resin layer by layer to build up a replica of the digital bone. After the printing is completed here at the lab, a completed physical copy will be sitting on the central tray, matching its digital twin on the computer screen. [Less] [Link to this slide]
Before fossil replica printing begins at the lab, a clear window on the printer's front must be closed to prevent dust and other contaminants from entering the chamber that houses the printhead.
[Link to this slide]
When a fossil model emerges from the lab printer, the product is covered with a yellowish, semitransparent support material that will crumble off under the pressure of a water jet....[More]
When a fossil model emerges from the lab printer, the product is covered with a yellowish, semitransparent support material that will crumble off under the pressure of a water jet. To prevent the jet from soaking the rest of the lab, the model is placed in this box, held steady by human hands inserted into the rubber gloves seen protruding through the front. The windshield wiper ensures good visibility during the process. [Less] [Link to this slide]
Sometimes, an error in the printer leads to models with filled-in eye sockets or other "mutations," earning the skewed replica a place on this shelf of deformed skulls.
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If all goes well, "support material" falls away to reveal the model of a long-lost primate's bones. So researchers have literally printed out a skull—albeit made of simulated plastic, not bone....[More]
If all goes well, "support material" falls away to reveal the model of a long-lost primate's bones. So researchers have literally printed out a skull—albeit made of simulated plastic, not bone. [Less] [Link to this slide]
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4 Comments
Add CommentI've been hearing about the variety of different materials 3D (and 2D) printers could handle. I'd like to know more about what materials are possible, especially such as printed solar cells that I've heard about, and what complications might arise with each.
Reply | Report Abuse | Link to thisThe next step in Rapid Prototyping of Tissue Engineering is using Fractal Trigeometry for designing Artificial Organs.
Reply | Report Abuse | Link to thisFor more information see: www.fractal.org
Straight out of "The Fifth Element"
Reply | Report Abuse | Link to thisI wrote about this a few years back, when I talked to professors at Ramapo College: http://www.scribd.com/doc/45338737/Jumping-Off-the-Page-Engineering-Technology-story-about-3D-printing
Reply | Report Abuse | Link to thisIt's an exciting field. I am glad to see it take off.