Hello all,

I have a question regarding this whole thread: I have tried using the
special paper that you print onto using a laser printer and then "iron" on
to the board, and I have had very little luck (this is NOT the copper foil
paper, which I have never seen). What I did was to print my patter using a
laser printer. I baked the paper slightly in an oven (I also tried not
doing this). Then I thorouly cleaned and even lightly sanded the board,
placed the paper on it, and then applied heat and pressure. To apply the
heat and pressure I tried both an iron and a commercial t-shirt press on
max. heat and on medium heat. I then within 20 seconds placed the
board/paper combination into  water until the paper separated. I ALWAYS got
an unsatisfactory result, some of the toner would fall off in the water and
I would be left with a spotty board. I even called the manufacturer and
tried his suggestions. Nothing worked. I even tried several different
batches of paper. To no avail. Any idea what I was doing wrong?

Thanks,

Sean


At 11:04 AM 1/28/98 +0000, you wrote:
>Is there a web site where I can purchase necessary components to try
>the copper foil technique on my own?
>TIA
>AY
>
>> Actually, the copper foil technique was developed precisely because it
>> is easier than the heat transfer method, and produces vastly superior
>> results.  It is very dificult for most people to get consistent
>> results with the TEC sheets (and similar products), and the very fact
>> that the toner is transferred twice limits the minimum reliable trace
>> width.  This new method promises high quality prototype PCB's with a
>> minimum of fuss.
>>
>>
>> CIAO - Martin.
>
+--------------------------------+
| Sean Breheny                   |
| Amateur Radio Callsign: KA3YXM |
| Electrical Engineering Student |
+--------------------------------+
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