In this tutorial, we will use a DLP printer to expose the circuit layout on a photosensible film over a copper board. Then, we will use acid to etch the PCB and see the results. DLP printer should give us very good results. But first we haev to prepare the 3D file and then etch the PCB.

First we need a circuit to print. I’ve used easyEDA to design my circuits. When you have the circuit ready, save the file and gom to file and select export. There select the SVG type and select only the top copper layer to be exported. Also, select a scale of 2,5X because the bigger the size of the SVG file, the better the resolution of the 3D printable file since that’s what we need to create.”