About this 3D model

I told you that I continued to work to improve my model of spinner, it is done with my first functional model, and it goes beyond my expectation, still lack a little power but it will take you the head when You will start to spin this stuff! I made a modification to the outer diameter of the model, so it is smaller. Now the thickness is 6 mm against 5 mm on the proto this brings better resistance to the spiral spring. I used a system of ball brake (and it is damn effective), 2 in total of a diameter between 1,8mm and 2 mm recovered in a ball bearing cut to the dremell. The balls must move freely in their seats. And the setting is done with a small adjust as shown in the picture. I already have my next model in the head, go hop! I'm back!