Digital art: N-sided peg structure

 

This structure of the selected yellow piece shown in the image above is repeated through-out the length to form a chain. Each yellow structure is made up of many sub-structures which which include

• N-sided shape of form the top and bottom
• Side walls to join the top and bottom to form a solid
• Protruding cylinder from the bottom to form the peg
• Attaching a sphere at the end of the protruding cylinder to form the ball of the ball-socket joint

The component directly below the yellow structure thus need to have a sphere caved-out form the top plane to form the socket to form the ball-socket joint