I've uploaded the table model with different amounts of tollerance, so you can print the assembly with the best tollerance for your printer.

It is fairly easy to assemble, if you chose the wrong tollerance you can just glue the two pieces.

Supports are not required, and the files are already oriented for FDM printing.

For me 0,15mm tollerance, on my Original Prusa MK3S, worked well.

If you want to, you can make a filament change for the chessboard, I made the squares different hights for that reason.

No supports are needed if your 3d printer ha good part cooling, but you may have to clean the part a bit after printing.

the model is quite big, if you want feel free to scale it in the slicer.