First big platter turning adventure!! Walnut glue-up, 1 1/4" thick, lathe can handle 24", not sure about me!! Was planning to mount faceplate with appropriate length screws, turn bottom with recess for chuck and base/foot(~~1/3 platter diameter??? per reading other posts), flip and finish face. 1/2" thick?? I'm thinking a slight ogee would be nice and easier than aiming for a flat tray. I would be delighted with a 20" platter. Other mounting suggestions from more experienced folks would be appreciated. Thanks, John.