Homebrew PCBs

Unless you are doing a very large board where loss of heat may be a problem, heating the board is
not "useless". I believe it causes a very rapid drying of the ink which allows more ink to be put
down with out puddling. I did notice that the last part of a long board was not as nice as the the
first part but I have found that if I keep the heat gun going until the board goes past the roller
I can get excellent results. I do think that the etching will help adhesion also. I kept a board
in FeCl for 30 minutes and had no degradation of the ink surface. The ink was softened and wiped
off easy but it still resisted fine. This is all with Epson magenta. Pure black washed off quickly
in the FeCl.