Analog 3D printer by Daniel De Bruin.
Assuming we're thinking of the same instrument, the Marble Machine was made by Martin Molin.
He's actually in the process of building another one, and there are currently 70+ videos devoted to its design and construction on his youtube channel. Well worth the watch, if you have considerable spare time.
Post your reply!
Join 42,532 of us and get 100+ tool plans, tool eBooks, build guides, and much more.
There are currently 1 users browsing this thread. (0 members and 1 guests)