This is 3dPd! It's a physical modular synthesizer based on Pd and Arduino that I have been developing for a long time. It is finally ready and the code is up on GitHub!
I will upload the circuit designs and a wiki for building modules in the next few days...
Hope you like it and some of you will build one yourselves!

Here's a demo of it:

Get the code here https://github.com/alexdrymonitis/modular_synthesizer

in respect. amazing work.

I've just uploaded all the circuit designs of 3dPd, including parts lists, gerber files, and .png files for DIY etching.
A wiki on building module hardware will hopefully be up in the next few days!
https://github.com/alexdrymonitis/modular_synthesizer