Chris Borge – They printed a better lathe (using concrete in a 3d printed shell rev 2)

https://www.youtube.com/watch?v=6Js8erWbsDQ

I've been watching Chris' lathe builds for awhile. This concrete pour seems like a really useful idea. The lessons learned and advice given here are valuable insights into the practical aspects of this technique.

My main underlying curiosity is what happens when such a methodology is used to create automated single purpose machines.