Explore advanced techniques in 3D modeling with SelfCAD's latest instructional video. Viewers will delve into the intricacies of constructing and modifying 3D objects, with a keen focus on understanding topology. The tutorial provides valuable insights into identifying and resolving common non-manifold issues that can plague 3D designs. Key highlights include a step-by-step guide on creating an office table from a plane, the benefits of this method, and tips on how to achieve smooth, rounded edges. Additionally, the video covers strategies to avoid creating small holes, utilizing the Round Object Tool, and adjusting object resolution to optimize your 3D models.