150mm x 290mm x 44mm footprint fits inside a standard plastic box (ex. shoe size) as shown in picture.

4x M4 mounting thru-holes at 250mm x 100mm with 34mm deep counterbore leaving 10mm under screwhead.

12mm deep blind holes for M4 heat-set insert nuts (5.7mm actual hole dia for Pemnet IUTC-M4).

Angled slot openings (5 deg all-around) for easier insertion of parallels.

20mm parallel-to-parallel gap and 12mm grip depth for easy finger fit and handling and on-parallel size visibility.

Can be used horizontally, or mounted vertically with parallel retention knobs.

All holes designed on 25mm x 25mm grid pattern.

Full-height perimeter wall for lid compatibility.

Print with less than 50% infill recommended to reduce weight and filament-use.

STL file, STP file, and Autodesk Inventor 2024 IPT file provided.