Many hobbyists wonder when they should use 3D sketching over the traditional 2D sketch methods.
Over the weekend I added a new page to my website - Introduction to 3D Sketching in Fusion 360.
This page will give you a brief overview of the differences between 2D and 3D Sketching. Also, some examples of when you should use a 3D Sketch.
I've also included a written tutorial to demo the 3D sketching of the "C" shaped table frame pictured above.