I traded my old donut chuck years ago and never got around to making one for my 3520B. I have not committed to this yet as I guess I could also just drop a wad of money on a Cole Jaw system. I really like the captured aspect of a donut chuck but I really hate making jigs. I have small Cole Jaws but I need to grip bigger pieces. Plus I have moving the stupid buttons. Looking for others thoughts and suggestions.
PS...I should have added that I have a vacuum chuck setup but some things won't take a vacuum. Not a fan of friction jamb chucks either.