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Subject: Re: [Homebrew_PCBs] Pinhole question

From: "H. Carl Ott" <hcarlott@...>
Date: 2013-11-08


On Fri, Nov 8, 2013 at 12:57 AM, Norm <w6nim@...> wrote:
Paper is sort of vellum in texture, yellow in color - on the paper side.  The working side is sort of glossy/waxy, orange in color.  When the toner releases, it leaves an absence of the waxy appearance where the traces were - if that makes sense.  It took the toner very well, and there were no apparent pinholes under 10x magnification.


 Are your traces wide or narrow?

  Do a test print on normal paper with largish filled areas. Hold it up and view it with a light source behind the paper.
  Is it really a solid black? Or black on the edges of the printed area and grey(ish) in the middle.

   Do the same test on the transfer paper. 
 
   The laminator faithfully transfers the toner to the copper. If it's not solid, you'll get pinholes.  


carl
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Henry Carl Ott   N2RVQ    hcarlott@...