How do 3D printers work?

3D printers are pretty awesome. Unlike the machines that print pictures or words on paper, 3D printers can create things you can hold in your hand – like fun-shaped food, cameras and even guitars. So how do they do it? We asked printing expert Robin Schwartzman from the University of Minnesota to help us find the answer.

, and we’ll see if we can get an answer to 

3D printers are pretty awesome. Unlike the machines that print pictures or words on paper, 3D printers can create things you can hold in your hand – like fun-shaped food, cameras and even guitars. So how do they do it? We asked printing expert Robin Schwartzman from the University of Minnesota to help us find the answer.
Got a question that jumps off the page? Send it to us at BrainsOn.org/contact, and we’ll see if we can get an answer to materialize.  

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Smash Boom Best is a debate show for kids and families from the makers of the award-winning podcast, Brains On! Every episode takes two cool things, smashes them together and lets you decide which is best.


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A history show for the whole family! Every episode explores the origin of just one thing — like sandwiches, video games, clocks and more — while teaching listeners to think critically about history.


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Our mission is to encourage kids’ and curious adults’ natural curiosity and wonder using science and history…but there’s no age limit on curiosity, and episodes of Brains On can be enjoyed by anyone.


How do 3D printers work?

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