Shapeoko 3 XXL Wasteboard

I have seen a few other versions of adding inserts to the Shapeoko 3 and 3 XL not for the XXL> Cutting into the waste board takes some careful measurements. the holes are positioned to avoid the screws. i cut mine about .010 shallow and drilled out the last .010 afterwards before installing the inserts. I also recommend running the program without cutting first to look for any collisions