Ben is always looking for tools and processes to help with all the projects he builds. He's got a CNC mill, laser cutter, and a 3-D printer, but hasn't found a way to whip up a PCB at his shop. He's hand wired many circuits, but this can be tedious. He's designed PCBs in Eagle and sent them off for production at a board house, but this doesn't help when he wants a PCB the same day. In this episode, Ben experiments with three methods of PCB etching and shares the results.