19-Inch 2U Rack Chassis: Sheet Metal in 1.2 mm Steel

2U rack chassis, 482.6 × 88.9 × 350 mm (width × height × depth), built in SolidWorks as four sheet-metal parts in 1.2 mm steel. A base pan with both side walls folded up 40 mm, a wrap-over top cover whose legs come down outside the pan walls, a 19-inch front panel with integral rack ears drilled on the EIA-310 465.1 mm hole centres, and a rear panel with four card-slot cutouts. Bend radius 1.2 mm, K-factor 0.44, two 90° bends per part. The cover carries a 9 × 7 grid of 5 mm vent holes. Each flat pattern checks against the hand-calculated developed length to within 0.001 mm (base pan 520.63 mm, cover 609.43 mm). Outputs: native SolidWorks parts and assembly, STEP, and flat-pattern DXF with bend centrelines.