Have a fairly good sized metal one. Heavy, clumsy. Thinking your design would be a lot handier and more useful. Like the design and functionality of it. Thanks for posting.
Me like! I have a metal one for my DP, but it is a bit "shallow" for a good hold on taller objects. Nice features are a set of "V" grooves (horiz, and vert.) plus some holes that let me secure it to the table. Clamps would work fine on your flanges or you might already have that in mind with your DP table.
Can't argue with the fine looking wood you choose!
SplinterGroup... here's my clamping arrangement. When I made my adjustable add on base for drill press, I also added LV t- tracks and LV hold down clamps.