Homebrew PCBs

The staedtler lumocolor permanent pen 313 permanent (RED)  0.4 line works for me 
The black didn't work in ferric chloride
Regards 
Craig VK2ZCM

  ----- Original Message ----- 
  From: Rob roomberg@... [Homebrew_PCBs] 
  To: Homebrew_PCBs@yahoogroups.com 
  Sent: Sunday, November 13, 2016 8:27 PM
  Subject: Re: [Homebrew_PCBs] Re: SHARPIE PERMANENT MARKER ETCH TEST finer lines


    
  THANK YOU for the suggestion.

  I'll have them here in a few days.
  http://www.ebay.com/itm/262038010827





  On 11/13/2016 03:48 AM, 'Dave Wade' dave.g4ugm@... [Homebrew_PCBs] wrote:

      
    I believe that some of the Staedtler waterproof markers were reasonably etch resistant, may not be this exact one..

    https://www.staedtler.co.uk/en/products/markers-refill-ink/universal-pens/lumocolor-permanent-pen-313-permanent-universal-pen-s/

    some folks sell these as etch resist on E-Bay..

    http://www.ebay.co.uk/itm/121477899315

    but they are available with fine tips.

    Dave

    These are what folks used to recommend 
    > -----Original Message-----
    > From: Homebrew_PCBs@yahoogroups.com
    > [mailto:Homebrew_PCBs@yahoogroups.com]
    > Sent: 13 November 2016 00:49
    > To: Homebrew_PCBs@yahoogroups.com
    > Subject: Re: [Homebrew_PCBs] Re: SHARPIE PERMANENT MARKER ETCH
    > TEST finer lines
    > 
    > On 11/12/2016 9:43 AM, Rob roomberg@... [Homebrew_PCBs] wrote:
    > >
    > >
    > > I was hoping to find a marker that could leave a finer line.
    > > I am getting a real fat line with a sharpie.
    > > So I was hoping a new sharpie might leave enough inck for a thinner line.
    > > This is too fat for DIP pins:
    > > http://www.learnmorsecode.com/laminator/pic/PIC16F628PROTO8d.jpg
    > > It works but is tight.
    > > http://www.learnmorsecode.com/laminator/hotcakes.html
    > 
    > Hello--
    > 
    > At the risk of revealing the era in which I learned technical drawing (*), how
    > about using an erasing shield?
    > 
    > http://drawsketch.about.com/od/materials/ss/erasershield.htm
    > 
    > The online auction site lists a bunch of sources for $.99 on up...
    > 
    > 252478256009
    > 
    > (Usual disclaimers apply.) Also, I haven't tried this due to displacement of my
    > drafting kit<g>.
    > 
    > In theory, the marker ink shouldn't spread under the shield and smear, but if
    > so, applying some tape on the under side to raise the shield off the
    > copperclad might work.
    > 
    > 73--
    > 
    > Brad AA1IP
    > 
    > (*) I worked on the crew that invented Fire....<g>
    > 
    > 
    > 
    > 
    > ------------------------------------
    > Posted by: Brad Thompson <brad.thompson@...>
    > ------------------------------------
    > 
    > Be sure to visit the group home and check for new Links, Files, and Photos:
    > http://groups.yahoo.com/group/Homebrew_PCBs
    > ------------------------------------
    > 
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    > 
    > 
    > 






  

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