Making the Seat Springs

Creating the seat springs

I used splines to draw the initial lines for the seat springs, roughly following the shape of the springs and then adjusted the lines to follow the curves of the springs. I then made a small rectangle and used it when I lofted my lines to create the body of the springs. I then rotated the shapes of the loft 90 degrees so that the pieces would become untangled.

I converted the springs to editable poly's and then applied NURMS and then added resolution with the swift loop tool. Next I created a cylinder on top of the top spring with auto-grid turned on. I moved the cylinder so it went through the spring and then holding shift I moved the cylinder to make a copy, and told the program to make three copies. I moved the copies so they also went straight through the spring and then attached all the cylinders into one object. 

Finally I subtracted the cylinders from the spring using the proboolean tool to create the holes in the spring.