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Engineers Create 3D-Printed Objects That Sense How a User Is Interacting With Them

A designer could use this method to 3D print interactive input devices, like a joystick, switch, or handheld controller

Adam Zewe
Wed, 10/27/2021 - 12:01
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MIT researchers have developed a new method to 3D print mechanisms that detect how force is being applied to an object. The structures are made from a single piece of material, so they can be rapidly prototyped. A designer could use this method to 3D print “interactive input devices,” like a joystick, switch, or handheld controller, in one go.

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To accomplish this, the researchers integrated electrodes into structures made from metamaterials, which are materials divided into a grid of repeating cells. They also created editing software that helps users build these interactive devices.

“Metamaterials can support different mechanical functionalities. But if we create a metamaterial door handle, can we also know that the door handle is being rotated, and if so, by how many degrees? If you have special sensing requirements, our work enables you to customize a mechanism to meet your needs,” says co-lead author Jun Gong, a former visiting Ph.D. student at MIT who is now a research scientist at Apple.

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