Stuff you need:
One sided copper-clad sheet
Muriatic acid
Common household hydrogen peroxide
Laser printer
Good quality magazine paper(cut for your printer-mostly 8x11 inches,thicker and shinier is better)
Plastic container that can fit the board in
Soft plastic brush
Clothes iron
Scotch brite pad or artificial steel wool (don't use real steel wool!)
Lacquer thinner
Drill and PCB drill bits
Safety goggles and rubber gloves
Software you need:
Eagle 5.11.-you can buy it here.
1.Print the following file on magazine paper using the laser printer and Eagle 5.11.Drill the holes in the indicated spots.
http://www.megaupload.com/?d=245ASNG8
Here's how to print the file:
http://www.youtube.com/watch?v=H3bXvNeINhM
This is the schematics.
2.Take the copper-clad sheet and buff it up a bit with brite pad or artificial steel wool.Then put it on the flat,sturdy heat resistant surface.
Put the printed side of the magazine paper on the board.Heat up the clothes iron and when it gets hot put it on the copper-clad sheet covered with the magazine paper.Don't allow it to move or it will get smudges.Press it and hold it like that for one minute.Don't move the iron and press really hard.
Then move the iron slowly but don't allow the paper to slide.Do that for 2-4 minutes.
Let it cool down.Put it in cold water an leave it like that soaking for about 5 minutes.Try to peel of the paper.Only the toner should remain on the sheet.If some paper remains let it soak again.If the lines are straight and there are no smudges you've done it.If not you can use lacquer thinner and paper towel to remove the toner and try again.
3.Now the etching.
Do this in a ventilated area.Pour two cups of hydrogen peroxide in the plastic container.Then pour one cup of muriatic acid (wear goggles and gloves).Don't use metal containers or stainless steel sinks.Gently and slowly wipe the board with the soft plastic brush.When the copper not covered by the toner dissolves
4.When the copper dissolves take the board and put it in water and leave it for 1-2 minutes
Now take the lacquer thinner and paper towel to get rid of the toner.
It should look like this,well of course with different areas of copper.
...to be continued...
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