3D design is a way of showing what something will look like without making a physical model or prototype. It's a way to visualize the end result of your idea before you build it, so that you can make sure it works before putting all of your time and money into it.
You'll need to use 3D modeling software like SolidWorks or AutoCAD to create 3D models, which are basically 2D drawings made in three dimensions instead of two. You can also use computer-aided design (CAD) programs on more advanced computers.
Architects, product designers and engineers all use 3D design to plan their buildings and products. Designers work with computers to make sure that their ideas are going to work before they start putting up walls or cutting metal. It’s a lot easier to find mistakes in your design on the computer than it is when you’re building something in real life!
