Hi Dan,
Thanks for taking an interest in this and I am sorry if I don’t always manage to explain everything very well (there is a big difference between what is stored in my head and what actually manages to escape
![Grin ;D](https://www.machsupport.com/forum/Smileys/default/grin.gif)
)
The Mach plugin and the DotG program really operate in entirely different ways and I think it would be ‘apples and oranges’ to try and make a direct comparison mainly because each would be good at what it does best.
My earlier examples with the plugin were at 0.1mm stepover whereas the previous cat is at 0.4mm stepover. This has been done deliberately so that the dots are visible and can be compared with a subsequent magnet produced image (using the same GCode). The attached, enlarged, pic shows the dots better.
It is perhaps interesting to note that, as far as the professionals are concerned, it is usual when creating laser produced images from halftone to de-focus the beam so that the individual dots blend and produce a smooth result.
There is a quite lot of useful info relating to halftone on the PhotoGrav site if you are interested
http://www.photograv.com/index.htmTweakie.