Stackable Desktop Rack for NVIDIA DGX Spark

A modular, stackable desktop rack for the NVIDIA DGX Spark. One tray per Spark: trays slide together like drawers and click shut, the top unit sits in a slim walls-less cap, and two runner feet lift the stack off the desk. Get another Spark later? Print one more tray and move the cap up. No screws, no inserts, no glue - the print is the hardware. How it works Each floor is a funnel-shaped opening that mirrors the Spark's pedestal flare. Lower the unit in and the funnel self-centers it as the pedestal seats - locked in plan with ~0.4 mm of play, resting on its own chassis rim. The underside dust-filter vent stays almost fully exposed. Dovetail rails run along the top of each side wall, with matching grooves underneath. A new tray (Spark already inside) slides onto the stack from the front and registers against a blind stop at the rear, so levels self-align flush. Every joint snaps shut: a cantilever spring finger inside each groove clicks a dome 0.8 mm into a pocket on the rail flank as