You can download any sample project you like from our website: OurMachinery: Samples. Alternatively you find them under Help > Download Sample Projects in the main menu. After you have downloaded them you can open them via the Download Tab or directly from the hard drive.
A few sample projects are coming by default with the Engine, you find them in the root folder under
samples/. If you are interested in how our tools work you can look their source code up in the