A pyramid is one of the most simple structures you can build. It’s base can be trilateral, bilateral, or any polygon shape. The square pyramid, with a square base and four triangular outer surfaces is a common version. All it takes is gluing 4 triangles together.
The basic design of the pyramid, with the majority of weight at the bottom, and with it tapering to the top, means that less material is pushing down from the top, This structural weight distribution allowed early civilizations to create huge, stable monuments.
The pyramid is a basic, strong structure. It will be durable and not take many steps to build.
The mechanics will be using a servo with a pushrod. .