blender is a mesh modeler, That means the underlying represntation of the scene is a a set of surfaces connected by nodes subdivided by triangles. Its efficient

blender is a mesh modeler, That means the underlying represntation of the scene is a a set of surfaces connected by nodes subdivided by triangles. Its efficient and quick for 3d animation and concept art but not so great for cad design. real cad tools like fusion360, autocad etc are parametric. they represent a shape in the form of constraints. The underlying representation of the shape is different in a way that facilitates modeling something that you are going to create a real world counterpart from. Yes there are open source cad programs but nothing I've seen comes close to rivaling professional tools the way blender does.