Printing off sheets of paper is so yesteryear. Enjoy the newest tech sensation, 3D printing, now demonstrating at the Cornell Library on April weekends.

Three-dimensional printing, also known as additive manufacturing, refers to the processes used to synthesize a genuine object in which successive layers of material are formed under computer control, to create a physical object. It works by extruding molten plastic through a tiny nozzle that it moves around precisely under computer control. It prints one layer, waits for it to dry, and then prints the next layer on top.

“Imagine that you’ve decided to organize your closet, but instead of measuring containers at a store to make sure they will work, you just go to your office, enter the measurements you want your containers to be, and print them out right there,”  said Patrick Pan, Branch Manager.

This is among an array of activities this month at local libraries, including audio books, DVDs and programs for all ages.