Seconded. I highly recommend watching the back catalogue. Also fascinating are the many videos about making and using pantorouters, a very versatile machine o

Seconded. I highly recommend watching the back catalogue. Also fascinating are the many videos about making and using pantorouters, a very versatile machine of his own invention: https://www.youtube.com/watch?v=J_72hOY2vPg https://www.youtube.com/watch?v=J_72hOY2vPg (see video description, and there are older videos of different models too). He sells plans for many things he's made on his website.