About this 3D model

This is a conveyor belt puzzle. First, you print each of the first four pieces, each one in a different color. Then in a seperate color print two of the fifth peice. After that print out several more peice fives in each of the first four colors so that you have enough to fill in the crevices in each of the first four peices. Then you put the pieces together putting the balls in the crevices and the two random colored balls on the top and bottom. Finally, you mix up the ball by pushing the balls like a conveyor belt end then try to solve it.