Homebrew PCBs

In a message dated 6/20/2004 7:59:12 PM Central Standard Time, 
ransom.peek@... writes:
First time tried to make pcb, used Sharpie Ultra Fine marker and ferric 
chloride from Radio Shack.  After 10 minutes in solution, with agitation, market 
lines were degrading badly. 

Ransom:   I have done tiny bits of PC-board sucessfully with a regular 
Sharpie, but ONLY a very new/fresh one!  Older ones that still work OK on paper, 
etc, won't work well at all as resist, just like you say.

However, I discovered some new Sharpie "INDUSTRIAL" fine point fiber-tip pens 
that LOOK the same except for the different color logo on the body of the 
pen, and it LOOKS like this may be "tougher" ink, as it claims to be "super 
permanent ink".  BUT I haven't had a chance to try these, yet.  Seems they were 
noticebly more expensive (at the "office store") than the "regular" Sharpies.  I 
just gotta get off my lazy antique duff and go TRY a scrap, and SEE.  Once I 
do, of course, I will REPORT here!

Jan Rowland


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