Fabricating Sheet-Metal Duct Systems With Computer Technology

Duct systems were originally carefully made by craftsmen skilled in sheet metal fabrication. Each piece needed to be configured individually, then cut from flat sheets of metal. The pieces would have to fit together with precision in order for the system to work in a functional manner. How is this accomplished in the present technological age? Computer-assisted sheet metal fabrication Before computers, sheet metal was fabricated from flat sheets of metal, using triangulation and other geometric formulas in order to achieve the correct three dimensional design when a piece of metal was fabricated into the intended shape.