There are so many mounts or models for the Arduino Uno and fewer for the Arduino Mega I needed to remix something for my purpose.
For my project, I am using the larger Breadboard for 5 Volt Sensors and the smaller breadboard is used for 3.3 Volt Sensors. I removed the small screen because my Arduino Mega connects directly to a Raspberry Pi with a 5inch touchscreen via USB Serial communication.
My project has so many sensors I needed 2 breadboards and I wanted to secure all 3 objects (Arduino & 2 breadboards) this solution worked for me. Enjoy!
The author remixed this model.
I wanted a flat 3D Model to attach 2 breadboards instead of the small screen on the original.
I added some small holes in the model so that you can mount the 3D model to something or a wall with screws.
I made small notches in the larger breadboard because my breadboards had some edges sticking out (used to join breadboards side-by-side).