A motion mechanic is the joint or combination of joints you use to generate the picking motion itself.
Despite the seemingly endless variety of ways you can physically move a pick, the most common approaches actually fall into a few simple categories. We’ve already taken a good closeup look at them in our investigation of escape motion and pickslanting.
Different joints generate different types of escape motion. So for example, the elbow only does DSX motion when operating by itself, while the forearm mainly does USX. And even beyond that, these joints generate motion paths with unique shapes, which helps us understand which physical mechanic is being used even if we can’t clearly see how the arm or hand is moving.
The “big three” of picking motion mechanics are:
We’ll learn how to perform these motions later on in the tutorials. But for now, let’s take a look at some tips for simply learning to recognize these important motions by their appearance and function. This isn’t as simple as you might think!