Please note that the holes for the USB port and the power supply of Arduino don't match the Arduino Uno, I needed to enlarge both of them. The rest fit well. I have not printed the top cover, I intend to keep it open.

Please note that the holes for the USB port and the power supply of Arduino don't match the Arduino Uno, I needed to enlarge both of them. The rest fit well. I have not printed the top cover, I intend to keep it open.
I had to modify it abit to fit my needs. I really like that look. Maybe you can make a usb type b version and for the cheap stepper motors.