Dive into the world of 3D modeling with our informative guide on geometric primitives, a fundamental element of digital design. We begin by laying down foundational definitions to ensure a solid understanding. The tutorial then seamlessly integrates SelfCAD's technical and artistic capabilities, demonstrating how to create and manipulate basic shapes with precision. Key concepts such as cube topology, polygon types, and the importance of merged vertices are discussed. Additionally, distinctions between open and closed paths, as well as paths versus surfaces, are thoroughly explained, all geared to enhance the viewer's modeling proficiency using SelfCAD software.