Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
Under-Desk Keyboard Tray Slide Rail
A print-in-place dovetail slide that turns any flat board into a pull-out under-desk keyboard or mouse tray — 175 mm rail, 99 mm of travel, 27.5 mm total drop below the desk. The rail screws to the desk underside through four 4.5 mm ears (fits #8 wood screws, 4.2 mm shank, or M4 machine screws) and the 60 mm carriage takes three M4 heat-set inserts on a 20 mm pitch so the tray board bolts on from below. Print two, one per side, spaced to suit your board.
Under-Desk Slide-Out Pen Drawer
A print-in-place hanging drawer that screws to the underside of a desktop with four M4 (or #8) wood screws on 4.5 mm clearance tabs, giving you a 74 x 104 x 19.6 mm two-compartment tray for pens, keys and USB sticks without eating desk surface. The tray hangs on 3 mm tongues captured in 45°-roofed grooves in the side rails, slides out 41 mm on a positive stop, and prints as one 116 x 118 x 26 mm assembly with 0.5 mm clearances — no supports, no assembly.