Arduino UNO Base
thingiverse
This simple base fits my old UNO with its large USB connector as well as newer models featuring micro USB ports perfectly. Minor print defects cause mine to fit fairly snugly. To ensure a secure fit, apply a small amount of hot glue or use a soldering iron to melt the four posts. It's not extremely rigid because I just wanted something to keep the underside insulated. Once I melted the posts on mine, it became surprisingly sturdy. If you need something very strong and rigid, you may want to look elsewhere. Perhaps I'll design a top for it at some point.
With this file you will be able to print Arduino UNO Base with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Arduino UNO Base.