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-----Original Message-----
From: duzallcnc [mailto:duzallcnc1@...]
Sent: Sunday, February 17, 2002 2:29 AM
To: High Tech
Subject: Re: How I make Pcbs


Hi Derek,
I made a tank like you described with a heater. while I was at the
store buying the heater I wondered about the pump. Is there a
particular arraingement for the output? Can you give detials of your
solder tank and its operation.
Thanks
Sean




- In Homebrew_PCBs@y..., "High Tech" <hightechsystems@a...> wrote:

Hi everyone
I thought I might share how I have been making circuit boards for

years.

I have made 1000's of boards using a method that some do not like

but I have

had excellent results with. First I design the board on my computer

using an

old program that runs in dos but is very easy to use.
I then print this out on my HP970 ink jet and make multiple copies

of the

board.
Then I use the blue sheets from Techniks Inc. using a copier to lay

the

final trace to the blue sheet.
Iron on the copper board using a setting on my iron of 3 yours

might very,

for 1min. till the traces can be seen through the back of the blue

sheet.

Use little pressure let the iron do the work if traces are smearing

or

spreading then the heat is too high or your applying too much

pressure.

You then peel the blue sheet off when it barely warm not yet cold.

If you

have a bad trace such as a cross over this can be corrected very

easily by

using a dental tool to scrape off the connected traces.

After that I just put it in the tank that has a heater and aquarium

pump

3min. and you have a board.
I dip my finished boards in a solder tank to coat the traces never

had a bad

board.
My boards are used on lots of equipment you don't need fancy

lettering or

green coating, my boards are put in a box and never seen. They have

been

working for 7years on equipment so I must be doing it right.
There are other things I do to protect the trace such as electrical

coating

etc.
Hope this helps some out there get started.
Derek B.
High-Tech Systems