GameCAD

GameCAD is a 3D-print design tool for people who want to create their own projects without learning complicated CAD software. Its playful, block-based interface lets users snap shapes together on a millimeter grid, resize them by dragging handles or entering measurements, and split blocks to form custom parts. The browser-based free demo requires no installation or sign-up, making it easy to try.

GameCAD also includes generators for practical features such as M2–M5 screw holes, nut traps, 608 bearing seats, and mounts for SG90 servos and LE2204 motors. Users can place a real component, such as a circuit board, into a design and build a case around it, with holes and fittings sized to match. The catalog offers projects to customize, including a Raspberry Pi 5 case with a lid, a ring box with a press-fit lid and hidden magnet, and an RC pusher plane configured for servos, battery, and motor.