This is the 3D model of the official Arduino Uno R3 board. The overall dimeio were taken from the official datasheet and by measuring the phisical board. For safety reaso, please make sure the screws spacing is same with your board, coidering the fact that depending on the manufacturer this can vary. 3D file was created using Solid Edge Community Edition, and the rendering was done using format on GrabCad : IGES