What you’re building
Built up components
Position the pin whole on the tip of the slizer foot over the axel whole of the foot piece.
Then slide the nuva shoulder through the pin whole and into the axel whole.
Then slide the axels all the way into the slize foot.
Cap of the other side with the other nuva shoulder and slizer foot.
Cap of both ends of the axel with ball joints.
put the slizer foot and ball joint into the axel whole on the bottom.