engraving

[MaxBigno80]

hello to everyone, it's days I bang our heads but I couldn't find a solution.
Do I have to perform engravings like those in the photo?
Do you have suggestions?

Thank you very much

 

[MaxBigno80]

Hi.
Sorry, but I found the solution.
practically create a sketch on a plane parallel to one of the main planes, create rectangles of the desired measurements and do, to be inserted--->curva----> division line.
he projects the lines on the surfaces by dividing them.

at which point change appearance coloring it of black and the game is made.