sensor base 3d model

A 3D printable mechanical sensor base. It is a solid, strictly geometric square box, size 28mm x 28mm and 22mm total height, with a completely flat and solid bottom floor. The top is fully open. On the flat bottom floor, there are exactly 8 small vertical circular holes designed for wire pins, arranged in pairs of 2 in each of the four corners (total 8 holes). Rising directly from this flat floor upwards, there is a thick, solid cross-shaped (+) partition wall that is 2mm thick and 15mm high. This cross-shaped wall splits the upper open space into 4 separate quadrants. All four outer vertical walls are perfectly solid, straight, and fully connected to the base. Strict CAD geometry, functional engineering prototype, precise alignment, no floating parts, clean topologies.