I have talked a lot about this tool over the years, and finally a video about how to make it. I will eventually get around to doing another clip about it showing a friend who is a master with it.
https://www.youtube.com/watch?v=orV-Oi5UsSo
robo hippy
https://www.youtube.com/watch?v=orV-Oi5UsSo
robo hippy