Tuesday, January 21, 2014

How To Make A Circuit Board

A circuit is the path that electric current takes as it flows. When you light a bulb with the help of a battery, you are using direct current to do so, and the current flows as shown in the diagram. If you light a table lamp from a socket in the wall, you are using alternating current to do so. In either of the cases, if you put a switch in the wire, then it serves the purpose of breaking or completing the circuit.

Instructions:
Step: 1 draught out the designed circuit on a piece of paper. Draw all the element, the connections within them and any exotic connections such as links to a power supply or a jack socket. With the planned circuit finished and checked for the faux pas, start to rejig the layout to create a circuit diagram based on forthright lines with no overlapping wires, much as you'd see on an overpast circuit board.

Step: 2 chopped a sheet of Cuprum coated board to the wished for size. Abrade the copper surface with subtle emery paper or a domestic scouring pad till it shimmers.

Step: 3 cole the circuit design onto the Cuprum side of the board ongoings an ineffaceable marker pen. Check the diagram for exactness, and then when you are glad that it is kosher, gingerly go over the marker pen lines with nail polish fruitful with a fine brush.

Step :4 Make sure that the area is well-atmosphere. Don chemical-reverberating gloves and commingle a ferric chloride engraving key in a shallow glass vase, using the intentness recommended by the producer. Get around the skin contact at all times.

Step: 5 subordinate the circuit plank into the engraving fluid, with the Cuprum side facing up. Convulse the dish to make sure the waters stream over the surface of the plank. Check the headway of the engraving process every few minutes till the unfortified copper field -those not veiled in nail polish -have all been liquefied. Take aside the board from the resolution and scrub it circumstantially under going water.


Step: 6 exsiccate the board, and effuse a mediocre acetone onto a ball of cotton wool. Abrade the etched circuit plank with the acetone to ablation the nail polish while avoiding contact with your Derm. Drill holes for the legs of the element, treating a model-maker’s drill and a bit about the precise size for the component legs.

Caution: Never effuse used ferric chloride down metal tube or hoard it in a metal container. Ferric chloride pickled metal and is venomed. Engraving chemicals can stain clothes or plumbing fixtures. Hoard any agent you use securely and exercise chariness when using it.



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