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Electro-etching device

Discussion in 'Making Your Mark' started by Hephaestus, Mar 12, 2015.

  1. dancom

    dancom Dust Maker Best Shop Tool

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    Yaaaa. You've got it working!

    Yes, it needs to be the correct polarity to do the ionic exchange and remove the metal. The reason I used the word "metal" is that this same process applies to any metallic substrate; copper, steel, bronze, aluminum, etc.

    When you use alternating current, half the time it's removing substrate (metal) and the other half it's electroplating, that is in the case of steel, storing carbon on to the surface of the substrate. Most call that marking.

    I have a super simple design that allows both etching (DC) and marking (AC) from a simple $10 setup. Adapter, diode and some alligator clips.
    http://dcknives.blogspot.ca/2015/01/simple-etcher-for-makers-mark.html

    You should notice the heat is less and the nail polish stays put. Remember to clean the surfaces well before applying the mask.

    Happy making stuff!

    Dan
     
  2. Daniel Kingsley

    Daniel Kingsley New Member

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  3. dancom

    dancom Dust Maker Best Shop Tool

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    Polarity rocks!
    Humour doesn't hurt either!
    That's crazy dude. LOL

    Dan
     
  4. John Noon

    John Noon Well-Known Member

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    Old post revival services :roflmao

    Anyone ever try and us a TIG welder for etching? have AC/DC and goes down to 5 amps more or less.
     
  5. dancom

    dancom Dust Maker Best Shop Tool

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    Might be a little on the hot side. I use 2 Amperes and stencils last a good while. I had been burning stencils with a 6 A battery charger. Only one way to know for sure. :)
     
  6. John Noon

    John Noon Well-Known Member

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    So if the stencils burst into flames it may be a little hot? :roflmao
     

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