"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Most face coverings, the CDC says, will slow the coronavirus—whether or not the wearer knows he’s ...

Typically, the 3D printer in Jason Cyprowski’s Murrysville home is more of an entertaining curiosity. “My daughters made cookie cutters, and my son’s made some little toys with it,” Cyprowski said.

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