Before you can print out your object at the library, you'll need to slice your model for the specific printers you will use. Select the software application based on which print you choose (i.e. for the MakerBot Method use MakerBot Cloud Print to slice your project and for printing on the Ultimaker S5 use Ultimaker Cura).
The library's 3D Printing Makerspace contains Ultimaker S5 and Makerbot Method 3D printers.
The lifecycle of 3D printing is conceiving your 3D object, designing (using CAD software) or downloading a fully made item from a repository (like Thingiverse), exporting the project as .stl, to slicing the model, uploading the file to the 3D printer of your choice, and then to finally printing out your design!
"Figure 4. Simplified example of a 3D printing workflow showing the principal steps to take you from conceptualization to printed part." Image from A Scientist’s Guide to Buying a 3D Printer: How to Choose the Right Printer for Your Laboratory, Joshua J. Tully and Gabriel N. Meloni, Analytical Chemistry 2020 92 (22), 14853-14860.
Ultimaker S5 - User Guide
Makerbot Method - User Guide