![]() ![]() My friend Kathy Nagel uses this method to make some beautiful prints by inking the etching and pressing it into paper. Now the image that you removed from the resist is etched into the metal. The acid reacts with the exposed regions, chemically removing the metal. You then remove the resist from the regions you want the etch and then expose the metal to the acid. There are resists you can you including wax and asphaltum. The general idea behind etching is that you cover the metal to be etched by the acid with something that will prevent or resist the acid from reacting with the metal. When I built the Triaparator I got more questions about how I did the etching then how I designed and built the irises - well here is how I made them:
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