If you are using Computer-Aided Design (CAD) for your products, you can use three types of modelling: wireframe, surface, and solid.
Wireframe: This type of CAD modelling is used when your product has more curved edges. In this kind of modelling, you use lines, circles, arcs, and other shapes to define your objects. unlike 2D versions of a product that you can wireframe using a wireframe tool or your notebook, CAD lets you build 3D versions where you can see your product from all angles.
Surface: Among these three methods, surface modelling is the most advanced. It operates by using guiding lines to delineate the contours and curvature of a component. Subsequently, the software computes a seamless surface that links these guiding lines. Some of the tools on this list will have this as a feature called Loft.
Solid: Think of this one as playing an advanced version of tetris where you put three dimensional shapes together as building blocks. And if you need to make a hole in your design, you can also use some of the shapes to remove (subtract) material from it.