Homebrew PCBs

On Thu, 08 Feb 2007 16:44:16 +0100, William Nelson  
<wnnelson@...> wrote:

> 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.


Black mispro also seems inferior.

Maybe a "strip heater" of some kind would work well for preheating,  
possibly under or over the board. Or maybe some kind of flat nozzle for  
the hot air.

ST