Welcome to the forum? Have you been browsing up to now and just now joining or are you totally new to the community?
Here’s a thread that links what you link:
While we’re killing time here anxiously waiting for machines, thought it would be fun to share some crazy, complex, expert-level, only-could-be-done-with-a-laser projects. Have seen some posted here already, here’s another…
This is a small company run by a friend, they just completed a successful Kickstarter project. It’s a family of ~80 piece, laser-cut baltic birch, assemble-it-yourself marble machines that can all be linked together. They are going into production now:
https://tinkineer.com …