When assembling projects, nothing beats a wide and spacious dead flat surface. And one of the easiest and most efficient ways to create a dead flat surface is by constructing what is known as a torsion box. A torsion box is really nothing more than a grid-work with a skin on both sides. This creates a very strong, yet light, structure that resists warping and sagging. Its very similar to the concept behind an airplane wing. This episode covers the construction of the Torsion Box top and Episode 19 covers the construction of the base.
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