Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Heat gun after toner transfer....
From: "lcdpublishing" <lcdpublishing@...>
Date: 2005-09-08
Another fellow was going to try using a heat gun after the toner
transfer process. Seeing as I messed up so good on my last two
boards and had to remake them, I figured I would give it a try.
I transferred the two circuits onto the boards - perfect transfers,
no pick ups or anything like that. This time I used the iron again,
set at 370 degrees F, and pressed 3 times at 10 seconds each time.
Each time I pressed, I made sure to move and rotate the iron a bit
so the steam hole areas were not on the same spot on the circuit
board. Really came out nice this time - very impressive.
I then took the heat gun and flashed over the circuit boards till it
appeared that the toner turned a bit glossy. My eyes are acting up
a bit today, so tomorrow I will look over the toner with a glass to
see if it looks like the toner "blended" together under the heat.
If time allows, I will etch and tin the boards tomorrow. Again,
will post results.
So far, that pulsar paper is working good for me, but frankly it is
expensive. However, if it works reliably, I don't mind the cost as
I don't do enough boards to justify another method using a cheaper
paper - yet.
Chris