I tried using this halftone generator on Cutrocket
and have to say I’m slightly addicted. It’s a great free utility. Ive attached the latest version of what I carved. It took me some experimenting but I’m pretty happy with where this wound up. I used a 30 degreased Vee bit and set the dots 1/16" apart. Next step is to figure out what is the best medium to use. This was a scrap piece of MDF. Im thinking of using white mat board with a black core.
If you invert the images, like a negative of a photo, you can paint or use a dark stain on your lighter stock. It’s a little easier than finding stock with a dark base.