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A new way to 3D print, developed at the University of Michigan, uses two lights to control the solidification of resin, enabling complex shapes to be pulled from a vat at 100 times the print speed of conventional 3D printers: https://news.engin.umich.edu/2019/01/...

Watch more videos from Michigan Engineering: https://www.youtube.com/channel/michi...

The University of Michigan College of Engineering is one of the world’s top engineering schools. Michigan Engineering is home to 12 highly-ranked departments, and its research budget is among the largest of any public university.

This project was co-led by Timothy Scott, associate professor of chemical engineering and Mark Burns, T.C. Chang Professor of Engineering and professor of chemical engineering and biomedical engineering.

A paper describing this research published in Science Advances, titled, “Rapid, continuous additive manufacturing by volumetric polymerization inhibition patterning.”
http://advances.sciencemag.org/conten...
 

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This basic process has been around for at least 15 years. We used to prototype rocket fuel lines this way. It is available for home use but you don't see it often.
 

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It appears from reading the article that they have made a step-change in the process to speed it up and make it more reliable.
 
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