Motor tutorial is still coming soon... ;)
I'm about halfway through the animations for the video on Brushless DC motors.

For this series, I'm using a 3D toolchain I've never used before. It slowed me down at first, but now I'm moving forward at my usual speed. I'm expecting about another week before this one is done.

Each night, I let all of my animations (re-)render. When working pre-rendered, things like the background color can fool me. That's what happened in this screenshot. The rendered version lost its background. 

While not what I wanted, the picture does look cool.