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
