The library has a 3D printer, Flashforge, and it's easy to use. Download their software here:
Create your own designs using Tinkercad (there are many websites or apps for 3D printing) or MInecraft (has to be converted to STL file after exporting - see below)
Or you can find a 3 D object designed by someone else on Thingiverse.
Once you have a design open it using Flashforge software and prepare it (edit size and placement on the print plate [you can add more than one thing on the print plate depending on the size], slice it and connect to the machine. You will connect via wi-fi. IF it's not picking up the machine the IP address is: 10.10.23.1:8899 Once it's sent you can then look on the machine's panel for how long the print will take.