The first prints are done and they fit together perfectly. Maybe a little too lose on the mid rails but i guess they don’t need to hold a lot so i could probably get them stuck real tight with one layer of adhesive tape.
So thank you @vicious1 for the files.
I’m just breeding over the calculator. Can someone help me get unstuck?
I’m going to make a similar cutout to @jeffeb3 ZenXY Desk and of course I want to have maximum image area. I’m a little confused about the cutout sizing for the countertop. Maybe some can help me out?
I have a maximum space the machine and all its parts can take up beneath the countertop of 1000mm (X) and 600mm (Y) and a 10mm ball. After entering these values, the calculator puts out 2 values for each of the 2 axes for the “work area”. How big am I supposed to make the cutout? Personally I would – having tried to imagine it all very intensely in my head – go for the “actual area needed” value. But since wood countertops have this crazy property of the impossibilty of undoing wrong cuts I want to double-check before my tracksaw touches the part 
P.S.: The tracksaw might just be a lie, since I’m maybe going to use a CNC router to make the cutout so I can go for a nicely fit routed recess cut for the glass pane