Insomniac or early riser?
Holes are on 20mm centers, 5.01mm, 6mm threads. I’m hoping it’ll slot right in using dowel pins on one edge to align with my HDPE base. The MDF in the pic above is a secondary waste board I use when workholding with CA tape.
Saunders makes killer fixture plates no question. I just enjoy the challenge of making my own when I can. Says the guy who made two Mr Beaver (@Luke) HDZ’s.
In any event, my Pro with hybrid bed is pretty rigid, unlike my old XL. Which was rigid enough for all my woodworking.
@Vince.Fab and I go back a bit though I will never come close to his abilities. I backburnered aluminum a while ago, only recently have I jumped back in. You might enjoy this old 2018 thread.