Joe's 1000x600x200 steel and aluminium router started

[Kitwn]

I have M8 tee nuts in the underside of my plywood baseboard with a drilled MDF spoilboard on top but I doubt you will allow anything so porous or flexible onto your machine. My spacing is 100mm and it's definitely too large.

One thing to consider is making the effort to get the holes on exact multiples of 50 or 75mm from your zero reference in both X and Y. You probably will drill them here anyway but this makes it easier to plan the layout of a job if you want to drill fixing holes in the workpiece, dedicated spoilboard or a jig. I say this because I made the mistake of drilling the holes, fitting the tee-nuts and then turning the board over to screw it down which means the grid is not as perfectly aligned as I would wish. We live and learn, it'll get fixed one day.