Wikipedia states:
Norton’s theorem holds, to illustrate in DC circuit theory terms: Any linear electrical network with voltage and current sources and only resistances can be replaced at terminals A–B by an equivalent current source Iₙₒ in parallel connection with an equivalent resistance Rₙₒ.
I don’t think this applies here.
There’s a YouTube video:
and an LB post:
I see in the video that the output is halftone image, which provides for pretty good detail when done with the correct parameters. I can’t tell in Bulldog’s images if they are halftone, and may not be, as other types of dithering, including those built into Lightburn can generate good results.
The Norton method appears to focus on spray painting black tile with white paint. I’ve done white landscaping rocks with black paint and black rocks with white paint to get clear line images.
Some tiles will engrave well with detail, without extra surface treatment, but it’s one of those test situations for that. The paint method will give consistent results without gamble.