|01-15-2008, 10:25 AM||#1|
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I am: John Davidson
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DIY pcb boards
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I am not sure if anyone else makes there own circuit boards for projects but I thought I would pass this on. One of my problems was the paper used in transfering the outline on the copper clad board. I now have been using my laser printer with HP Photo paper. The glossy side gets the printing. Print out the circuit and trim to size. Clean a piece of board and wipe with laquer thinner. Keep the finger prints off so there is good adhesion. Set an iron to the hottest setting and iron the imprint on the board. I use a piece of paper towel on top to keep the wife happy but this paper has not been leaving any residue. Using the edge of the iron with a bit of pressure, go back over the board. You should see an imprint coming through. Let cool then place under a tap of cool water. The first 2 layers come off usually in one piece. The last layer and this is where I have always had problems you wet again and lightly rub with your thumb. It comes off very easy compared to most of them you have to pick at because of sticking.
I was very happy with the results as I have some printing on the board that is .060 which is usually hard to read with some of the other transfer material and the traces can be thinner. It is etched very sharp and looks more professional to me. Now I want to see if I can figure out the lettering for the top of the board so it makes it easier to populate.
Hope this helps some others as I find this is part of the hobby also.
Keep the shiny side up and the wheels down
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