I'm wanting to make something, and want to search on newbie mistakes to avoid, but i don't recall what the thing is called.
It is a common chuck/jig for holding a bowl for finishing the bottom.
Roughly, it is two circles of plywood, the first on a faceplate or such, and the second a donut that holds the bowl while exposing the bottom for clean-up.
Brother, can you spare a name?
To borrow a phrasing from another group, I can be more vague if it helps.