Sign up for a free Fusion 360 license and watch a lot of YouTube tutorials. If you're good with spacial relationships, you'll start to work it out pretty quickl

Sign up for a free Fusion 360 license and watch a lot of YouTube tutorials. If you're good with spacial relationships, you'll start to work it out pretty quickly. Of course, there are also online courses, but for the most part the software is so good it's not necessary.