3-D printers are expanding the things people create and how. Meet the Colorado man who's considered the father of 3-D printing. Then, art students helped design a 3-D prosthetic for an injured cat. A CU Boulder professor wants children who are blind to experience literature with tactile picture books created with the printers. A Loveland company builds small 3-D printers for home use, and a printer that could turn water to ice, then create homes on Mars.
![RTD Police Chief Joel Fitzgerald Sr. speaking at a press conference](https://www.cpr.org/cdn-cgi/image/width=3840,quality=75,format=auto/https://wp-cpr.s3.amazonaws.com/uploads/2022/11/221110-DENVER-SAFETY-PRESS-CONFERENCE-COLORADO-CONVENTION-CENTER-DOWNTOWN-CBD-KEVINJBEATY-31.jpg)