Method for joining rows or columns

I am a very newbie, I found this on the web and I need to do something but I don’t know how. Maybe someone can help me. I want to cut the columns or rows or each rectangle individually with a cnc to build something. But I need a method of joining the parts. I was thinking of making 2 small holes in the edges, as seen in the image, to join them with a cord or wire. Could you tell me how I can draw the holes on the edge with grasshopper? Thank you very much already! Greetings! (13.0 KB) (16.6 KB)

Slow (~1 min.) but patience is rewarded.

P.S. Where did you find this model? Give credit where it’s due, eh?

I tell you the truth, I do not remember where I found it, searching the web I saw this and I think it will help me. Without a doubt I could never do it myself … It is a great work of another person, if I knew who he is, I would mention it and thank him!
At the moment I thank you for taking the time and helping me with this! I owe you one! Successes!

That’s too bad. It’s a nice piece of work, the original author deserves proper credit.