About this 3D model
I've adjusted original MeArm files https://github.com/MeArm/MeArm in Fusion360 for 3D printing. Screw holes are prepared for M2.5 screws. MeArm Maker Kit can be bought here: https://shop.mearm.com/products/mearm-maker-kit-cut-your-own The arduino UNO shield can be bought here: https://www.aliexpress.com/w/wholesale-Electronic-building-blocks-Dual-PS2-game-joystick-.html