I couldn't find a drawing with dimensions online so I made one myself using a picture of the plate as a stencil.

I tried reverse engineering the dimensions but gave up rather quicky and fixed the drawing I made in place since the test print showed that it fit so why bother…

If you want to use the drawing for your own modifications, I advise to use the first sketch inside the “big plate original”. All of the other sketches are quite messy.

All of them are made with the space for a guide bushing to be mounted (also the small ones)

These are the first models made after 3 testprints with some modifications made. It is very possible that there's still a mistake in one of the drawings (I had some trouble getting the square plates lined up correctly with the router itsself)

Print in whatever material you like. Most will be just fine. The plate is quite thick (6mm) and you'll be manhandling the router quite hard before a plate like this brakes (maybe just don't