I currently borrow a small Porter Cable 1/2 horse router, and a Porter Cable router table. The router depth is adjust by twisting the router body on spiraling slots under the table fixture. The clamp with these slots in it is then tightened once the depth is finalized. Since I have a 3.25 HP plunge router on my wish list for table purposes, it doesn't appear this table will work anymore. I've started looking at making a nice custom table.
My understanding is that a typical assembly of such consists of a flat durable surface (often mdf), counter sunk in the center with a base plate such as the HF one, the plunge router screws into that, and depth is adjusted via the plunge mechanism. Is this correct so far? How do you adjust depth without a plunge router such as the Milwaukee, or a brand specific table like the PC that adapts to it's own fixed base router?
After I thought I'd figured this out, enter "lifts" into my research findings. Are/when are they necessary?