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Modding My HS lapping

Discussion in 'Modding' started by shadow12, 21 Oct 2007.

  1. shadow12

    shadow12 I lie

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    This is my attempt at lapping an old HS.

    It was done with 400 grit then 600 and finally 1200.
    After that rubbed with some bicarb toothpaste and then brasso.

    Things I learned:
    Dremmel is way too fast and not delicate enough. For large grooves its ok but for fine smoothing not ideal (you end up with wheel marks everywhere).
    Toothpaste works great!
    Patience is required.
    Brasso works better than expected.
    Be careful of the edges of your HS


    Cost
    Wet/Dry Sand paper from screwfix.com 2.79*3 1 at each grit. You get 10 pcs for that price.
    Cloths from sainsburys, simple dust cloths 2 for 0.97 or something like that.
    Brasso sainsburys about 1.60
    Toothpaste something i had round the house.

    Hope this helps anyone who is looking to do this.


    [​IMG]
     
  2. capnPedro

    capnPedro Hacker. Maker. Engineer.

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    Looks great; but you may want to wipe it down with rubbing alcohol. Brasso can leave a layer of residue (polish?) which, although making it look shiny, could interfere with heat transfer.
     
  3. shadow12

    shadow12 I lie

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    You are absolutely right. The HS was bathed in water, left to dry and then cleaned down with alcohol gel.
     
  4. johnnyboy700

    johnnyboy700 Minimodder

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    A sure sign of a good finish on metal is to have a distortion free reflection - well done, a very nice job.

    I did hear that toothpaste would work but I've never tried it as I always stuck with various grades of wet & dry and finishing off with some form of metal polish.
     
  5. 500mph

    500mph The Right man in the Wrong place

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    hmm, usually when its copper you dont want to leave it in water. but if its alu i dont think it makes to much of a difference.\
    anyways, nice lapping you have.
     
  6. shadow12

    shadow12 I lie

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    Thanks guys. Its now in the PC.
     
  7. nibble

    nibble What's a Dremel?

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    Why not?
     
  8. kenco_uk

    kenco_uk I unsuccessfully then tried again

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    Water tends to react with copper and give it a green tinge :)
     
  9. capnPedro

    capnPedro Hacker. Maker. Engineer.

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    Cu (II)(s) + 2H2O(l) -> 2Cu(OH)2(s)
    :blush: I'm a bit tired to work this out... but shouldn't copper like... not react with water?

    Edit: And we make pipes out of copper because it's unreactive.
    CuO is green too though, right?
     
    Last edited: 24 Oct 2007
  10. 500mph

    500mph The Right man in the Wrong place

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    i remember reading something here on bit-tech about using alchohol instead of water due to oxidation, but i dont remember where it was....
    and i think this may be dirt, but it was taken out of ZeroHero's project log "Lian Li Clean Mod"
    [​IMG]
     

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