After months of planning and researching, finally got my vacuum chuck completed. With help from Richard Schlumpf and members the Honolulu Wood Turners it's done and works great. In fact it sucked the bottom out of a bowl I used to test the vacuum. Forgot to adjust the bleed valve. Got some pics.chucks
Pic 1: Rotary adapter connected to hand wheel, 3",4"
Pic 2: My home made rotary adapter, made of corian ,2, sealed bearings and O rings
Pic 3: Yellow Jacket 6 CFM pump, pulls 29hg. respectively
Information courtesy of Family Woodworking , Sawmill creek, AWW, Woodcentral, Woodturners Resource, Honolulu Wood Turners