Hi List, While I was ironing attempt #2 onto copper clad today, the outline of a human hair became clearly visible under the paper (the aluminium from the iron basically acted like a rubbing pencil). I guess the good news is that it was clearly apparent early on and I was not left to ponder over what it could be that caused the non-adhesion. But there certainly wasn't anything I could actually do about it. After a fruitless attempt to pull it out, I decided to just wash the paper off and see what the result was, whether I could patch a few traces. It was pretty significant! I've uploaded a photo at: http://groups.yahoo.com/group/Homebrew_PCBs/photos/album/809517956/pic/2133723863/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc Anyway, *another* thing to check carefully for before proceeding. PG
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The effect 1 small hair has on a board
2011-10-06 by Piers Goodhew