dental prosthetics

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New 3-D Printer Uses Light to Build Objects in Minutes

The next generation of desktop 3-D printers might do away with the excruciatingly slow process that current units use. Researchers have unveiled a printer that replaces the current extruder nozzle that squeezes out melted plastic one layer at a time with light and oxygen. 

The makers of the Carbon3D printer have demonstrated a technique they call continuous liquid interface production (CLIP), which grows 3-D printed parts out of a liquid resin bath. Ultraviolet light and oxygen work to build a stronger part in layers just tens of microns wide. Build times can be reduced from hours to minutes, they say.

Their work builds on the process called stereolithography, an additive manufacturing technique developed in the 1980s that builds parts layer by layer with liquid resin cured by light. 

“By rethinking the whole approach to 3-D printing, and the chemistry and physics behind the process, we have developed a new technology that can create parts radically faster than traditional technologies by essentially ‘growing’ them in a pool of liquid,” said University of North Carolina, Chapel Hill chemistry professor Joseph DeSimone, who coinvented the technique and is also Carbon3D’s CEO. See more images and learn more below.

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Join us once more on Wednesday, June 3 at 6pm server/Pacific (7pm Mountain, 8pm Central, 9pm Eastern) in Ironforge’s Hall of Explorers for another installment of the Alliance Medical Association. The event is free for all to attend and accessible for all players and characters. It is also cross-realm compatible, so all roleplayers regardless of server can attend.

The presenter will be June Morrow, DDS, and the lecture, entitled Learn the Drill: Dentition and Dentistry, will cover such topics as tooth anatomy, dental restoration, prosthetics, at-home care, dental history, and more. Come with questions, as there will be a question and answer portion during the event if time allows.

As an OOC aside, the regular host (Apprentice Grauenvoll, Skrimps in-game) may not be available for this event. If that is the case his wife, Viletta Grauenvoll (Milkweed in-game) will assume the role of host to begin, end, and moderate the lecture.

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Teeth: Another mini-experiment as I haven’t cast teeth before. The first image shows my teeth imprint in the dental alginate as it sets. The second image is the final plaster cast (right), as well as a polymorph impression (left), that I made while waiting for the plaster to dry.

This was a pretty cool and peculiar experience as a whole, and from the cast I can now experiment with sculpting teeth.