Homebrew PCBs

Maybe the toner isn't printing "heavy" enough on the
paper?....try increasing the toner density.

Charlie



>My problem isn't getting the toner to transfer well, it's etching. Lots
of pinholes. The toner is too porous. I've tried the lighter fluid method
of fixing the toner but no workie. The foil method will probably work if
I can get the stuff hot enough to transfer. I am using original HP toner.
Any thoughts ?



Doug Forbes




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From: Homebrew_PCBs@yahoogroups.com [Homebrew_PCBs@yahoogroups.com]
Sent: Sunday, June 12, 2016 5:41 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: RE: [Homebrew_PCBs] First attempt at toner transfer


  

Well, I tried the cold transfer method and\ufffd yeah.. no dice at all. 
Probably my mixture wasn\ufffdt working right.



Anyway, for sport, I went back to the process I had tried before.  My PCB
patterns are bigger than what\ufffds out there on youtube, and I had been
printing them on separate pieces of paper.  This time, I printed them
together on one piece of magazine paper from Hotrod Magazine (love that
magazine).  Then I cleaned the board, let the iron get hotter than the
blue blazes of h\ufffdll.. and then went for it.  Spent a good 10 minutes
really working the iron \ufffd first back and forth nice and slow like a
laminator, then faster, on the theory it would keep the paper hot all the
way around.  I looked really closely and could kind of see where the
toner was coming off the paper a little bit, and really worked the front
end of the iron down on spots I thought were suspect.  Then I dunked the
whole thing in a tub of cold water and let it sit for 2 minutes.  Anyway,
voila!  The result:



http://s1381.photobucket.com/user/unclefalter/media/20160612_172825_zpstl
1dzy7q.jpg.html



So that disproves that my compatible toner won\ufffdt work.. at least for the
ironing process.  Don\ufffdt know if we\ufffdll have a problem when we etch?  But
yeah.. it looks really good, I think.  I kind of figured the problem was
\ufffdoperator error\ufffd here since 80%+ was coming off on my previous tries.  



Now that I sort of have a procedure that works I think I\ufffdll keep at it
and get my other patterns done.  Lots of Hotrods lying around. J



Brad






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Posted by: "Forbes, Doug" <doug.forbes@...> 
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