This was a really cool art project my grand son saw on Youtube! Cyanotype is a photographic printing process that uses sunlight to create a blue-tinted image on paper or fabric. The process involves coating the paper or fabric with a light-sensitive chemical and then exposing it to sunlight. The areas that are blocked from the sun, such as those covered by silhouette images, will remain white or unexposed, while the areas that are exposed to the sun will turn a deep blue color.
Using my Glowforge to cut out silhouette images was a clever way to create interesting designs and patterns in our cyanotype art. By using the Glowforge to cut out shapes that blocked the sun, we created intricate and unique designs that was visually interesting.
Overall, this was a fun and creative project which produced some really beautiful and unique artwork.
i believe it will work on most “porous” surfaces. paper/fabric are most common, i’ve seen references to wood (not sure if you’d get as bright a blue). It would be interesting to see if certain more porous stone would work.