Hello..
I watched all the vids on the ball turner.. I like your idea and thought you made a very rigid unit I like it and strangely enough I have all the material to make one myself.
Could you explain a little more why you were acorning, and was the mandrel sticking out of the chuck too far causing it to lift and chatter.
All the best..
Anthony.
Hello Anthony , the acorning was caused by me not setting up the device in the correct position , luckily there was lots of help on the comments section below the video on YouTube with people with more experience of these matters putting me in the right direction,check them out
Re the chattering I didn't get to the bottom of it, I couldn't get it to cut brass on the rear cut, but it was fine on steel,
I made the device for a sculpture I'm making at the mo, overall I'm happy with it but it's limited to balls 30mm max lol which was fine for the project