Turn on the electric iron (the same one used for clothes). Carefully cut out the design and position it on the circuit board. Put the hot iron directly on top of the circuit board for about 45 seconds. Take the circuit board (careful it’s hot). Wash the paper out such that the black ink is stuck to the copper circuit board.
Keep in mind that copper cannot be between components, for example, if connecting an LED, there must be a gap in the copper between the positive and negative points of connectivity. Without a gap, the electricity would flow around the LED, as opposed to through it. Remember laws of electricity, all circuits must end at either a negative or ground, or no current will flow. Use thin lines, but lay the ink on thick, it is important that the copper is dissolved before the ink, and that there are no thin patches in the ink exposing copper.
Hand-held Drill or Drill Press Various drill bits Soldering iron Solder
There are two types of components: Through hole components (have long legs) and SMDs (surface mount devices). For SMDs you don’t need to drill because they are surface mounted, but through holes need holes in order for them to be soldered on. Through hole components enter the board from the opposite side of the copper.
