A fast way to learn 3D CAD is to simply watch others use it. You will get a sense of how to approach different designs and learn a variety of ways to sketch and apply features. In this video, we look at building a basic Frame Guide. It’s a simple part, but perfect for those new to 3D CAD or Onshape. The best part is that you can follow along with the video, because the model and associated PDF have been made public in Onshape.
You can access the public Frame Guide Document here.