RepRap: Blog

The plan: Get some of this fine fake gold foil, which is basically ultra-thin brass, and burnish it onto a glass slide like I do 30μm aluminium foil.

Then carve into it with the probe tip to make conductive traces, either in lines or little dots much as I've done with Sharpie marker. I have already poked holes in foil, and others have made macro scale circuits from fake gold foil, so the principle is sound. You can even solder onto it.

If I do all this near manually scored lines, I should be able to construct contact pads. Then I can use the probe to do things like add ionic gels or active resins etc. across conductors and create circuits. With gels that would be done by diffusing the copper into the gel electrolytically. Other options include creating photosensitive components from copper sulfide and so forth.

It's on my Amazon wish list...