If you did not cut your teeth on 3D CAD tools, then you probably have struggled to learn programs like Fusion 360. One of the primary reasons for the struggle is not understanding the concept of constraints. In this tutorial, we will explain constraints, and how to use them for your benefit. One of the main reasons things do not behave how you expect in Fusion 360 is not understanding constraints and how they work. This lesson will allow you to master constraints.