Box Enclosure with Pocket Grid

Create a rectangular box enclosure, 220 mm long, 140 mm wide, 55 mm tall, with 2 mm wall thickness and 3 mm rounded edges. Do not add any lid or cutout in this step. On the top face, in the front 115 mm of the 220 mm length, cut a full grid of rectangular pockets with exactly 4 columns along the 115 mm length direction and exactly 7 rows along the 140 mm width direction — 28 pockets total, fully visible with no pocket touching or crossing the tray-zone boundary. Each pocket is 26 mm long by 18 mm wide and 12 mm deep. Leave a 2 mm gap between neighboring pockets in both directions. Leave a 2 mm margin between the outermost pockets and the edge of the 115 mm x 140 mm tray zone on all four sides — left, right, front, and back — so the first and last row, and the first and last column, are completely visible and not cut off. In the rear 105 mm of the length, leave an open, empty compartment with no pockets — this is for electronics and stays separate from the tray grid.

Parameters

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