My name is Aris and I've been working on this modular 3D printed block for a while. Just release like the 1st version (partly).
And to try these blocks I've created a remix of some Otto robotic using it. It is open-source btw.
Here is a video preview making Otto basic
And if you would like to see the step by step and STL files, I have created here :
And here is an introduction video that I've created recently.
Until now I'm still working on it, And let me know what you think?