In this assignment I decided to do a piece because of two reasons: one of them is to finish the homework (obviously), the second purpose is to try something new for my stirling engine.

What I tried is to make a pillar that is not rigid, and the goal is to reduce vibration and as consequence it would increase the efficiency. I will be able to check if that works only in a few weeks, but I am excited that it may work.

But now let’s go to the part itself, basically what I designed is a spring ïnside” the pillar.

This is a single piece, and the only way to do this structure in a single piece is by 3D printing, also there is a pillar inside the spring that is used to constrain the spring movement in the radial direction, that part makes it even hard to manufacture using a different process.