Fidget Thing

Just playing around as I am learning in OpenScad. This fidget has balls that roll on the inside track and another moving piece across the center. I rotate the file fidgetB.stl 90° to print nicely on my printer. I have been printing files fidgetA.stl and fidgetC.stl together. I think assembly is pretty straightforward. The ring will only go over the central spiral from one side, I have been stacking the balls inside the spiral before sliding it into place and then the clips just lock everything i