So I draw this design in in IGEMS and prepared it for being cut with waterjet (the silver-ish one in the pictures) in stainless Steel. After it was cut, i also exporten the design as dxf and made a stl using Fusion 360.
Base thickness is 3 mm, but you can scale the Z dimension after your wishes.
As a bonus, i also uploaded the dxf in case someone else wants to cut it with waterjet, laser, or simply want to use it for something else.
The author marked this model as their own original creation.