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# Embedded Etcher
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Design files related to a photo-sensitive layering method etching machine
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everyone can build to produce prototypes quickly at home or in the lab.
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## Architecture
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The etching machine consists basically out of two parts. The first part is a UV
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light, which is used to develop a photo-sensitive PCB. Once this has been done.
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The PCB has to be treated with sodium hydroxide (NaOH) dissolved in water. This
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removes the UV-sensitive plastic, where it has been tackeled by the light.
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The second part is the actual etching machine, which is designed to be
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compatible to euro cards (and even bigger ones). The etching machine is either
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filled with sodium persulfate (Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub>) or
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iron(III) chloride (FeCl<sub>3</sub>) dissolved in water of course.
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## Cuvette
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## UV Light
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## Etching Instruction
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