Abstract: The present invention relates to an automatic control system for a backward flow forming process, the automatic control system including: a mandrel (10) for concentrically supporting a material (12); a forming member (20) including a plurality of forming rollers (22) disposed at a periphery of the mandrel (10), in which each of the forming rollers (22) includes a motion device; a detection member (30) for detecting a signal associated with a motion of the forming member (20) corresponding to the material (12); and a controller (40) for controlling the forming roller (22) to induce a variation in a depth at at least two set points while transferring the forming roller (22) backward. Accordingly, a length deviation caused by a variation in a thickness is prevented in a backward flow forming process of a workpiece to produce a product in which a thickness of a portion of the product varies.

Abstract: A 3D interactive construction estimating system is provided that includes a computerized interactive ERP/3D design and estimating system for building construction projects and services. The computerized 3D interactive construction estimating system is real-time, visual, and transparent to both the customer and the manufacturer, and allows the customer to design and customize a home or other building with real-time integrated 3D virtual tour, pricing, scheduling, ordering, and financing options. The system includes an ERP system, a CAD system, and a graphical front end that provides the user with a virtual design experience.