Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:6030493.
This is my attempt at making a standardized system for mounting common modules to your projects. It is meant to be customized as you wish, I've just made the platform and some modules with the boards I had on hand, I hope this will get some traction and some remixes with other modules, that is why I've left a template to make new ones. The idea is to make a grid of 27mm squares with 4mm holes in the center, all these modules can then be mounted onto it with either m4 screws (that can even be 3d printed, i've included the model) or m3 screws and brass inserts. In the files, you will find multiple versions of the same module, the ones with an S before the name have pegs that make it possible to use just one screw.
All the details are in a video i've made here: https://youtu.be/NnioOohQsZE