enclosure case 3d model

Enclosure bottom case: a rectangular box 195mm long, 80mm wide, 51mm tall outside (3mm floor + 5mm standoffs + 35mm board + 8mm clearance). Walls are 2.5mm thick. The case has a flat bottom with a 5x5 grid of round 5mm ventilation holes in the center-right area. Six round bosses (8mm diameter) rise from the floor at the corners and midpoints of the long sides, with small 2.7mm holes running through them for M2.5 screws. Inside, four standoffs (7mm diameter, 5mm tall) near the center, and four smaller standoffs (5mm diameter, 8mm tall) on the left side. On the right short wall, two rectangular cutouts: a larger one (18x10mm) for HDMI and a smaller one (14x12mm) for a barrel jack. On the left short wall, one rectangular cutout (10x10mm) for USB-C. The interior is hollow with a 2.5mm wall rim around the top edge. Dark gray matte plastic texture. No electronics inside, empty case only. Enclosure lid: a flat rectangular plate 195mm long, 80mm wide, 3mm thick. Two groups of round ventilatio