I have made a MFT (multi functional table) similar to Festool MFT
using 3/4" (19mm) MDF and frame made of 60mm 8020 aluminum extrusions which are miter cut, so that i could access all sides from corners for clamping and fixing other fixtures. MDF top has 20mm holes, driled with a Forstner bit, on a grid of 100mm center to center. Overall dimension of the frame is 1200mm X 750mm
I am sharing a few pictures of how useful it has been, to mount my cutting board mounted belt sander and jigsaw on the MFT.
Grid, i made a template on scrap 4mm plywood of 4 x 4 holes at 100 mm spacing and using that, i have drilled the holes on the table top.