So as a beginner to 3D printing and an engineer, I wanted to test out different shapes and see how changing attributes changed the shapes. This is nothing complex or difficult so you don't need to use up a lot of filament. Just a series of shapes to test things out. All of the small shapes are 10 mm dimensions and the slab is 50 mm on the sides x 25 mm thick. The two spheres are great for testing out adding supports to your build. Try printing the slab with top layers set to 0 to see the internal structure of your print. I've included the individual .Stl for each shape too.