====== Chemical etching a circuit board ====== Chemical etching circuit boards isn't that hard. Below, I walk through the steps. First, design the circuit board using a pcb software of your choice. {{:projects:2014:chemicaletching:original.jpg?direct&200|}} Second, convert the image to monochrome of the traces only. {{:projects:2014:chemicaletching:monochrome.png?direct&200|}} Use a vinyl cutter to cut out the traces and transfer the vinyl to a copper pcb board. {{:projects:2014:chemicaletching:20140527_164216.resized.jpg?direct&400|}} Place the copper (with vinyl mask) into the etching bath. Remove it after the exposed copper has been etched away. {{:projects:2014:chemicaletching:20140527_170752.resized.jpg?direct&400|}} Use a drill and small drill bit to drill the through-holes on the board. {{:projects:2014:chemicaletching:20140528_131752.resized.jpg?direct&400|}} Solder the final components. {{:projects:2014:chemicaletching:finalboard.png?direct&400|}}