Ball in a Knot & Just the Knot

This design is a simple knot carved out with room for a ball to roll around inside. I've also included the solid knot that I used to make sure the printing would be okay.

I started by creating the knot as a spline in Cheetah3D and then importing it into ZBrush. In ZBrush, I tried a variety of ways to look inside and settled on a simple groove almost the entire way around the knot. Finally I added one ball to complete the design. If there is interest in versions with additional balls, just let