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Restoring a "cast" finish after welding/linishing

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    #16
    Another vote for sandblasting, have done it on old vintage bike engine and gearbox castings that had been repaired and needed to look "original" .

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      #17
      Just came across this video:
      https://youtu.be/4oXrMe8heKE?t=236

      It looks like you can get a really nice look with the right type of engraver.
      Imagination is more important than knowledge.

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        #18
        Originally posted by Ben Wilson View Post
        Just came across this video:
        https://youtu.be/4oXrMe8heKE?t=236

        It looks like you can get a really nice look with the right type of engraver.
        Looks like a vibration engraver. Can pick them up for $25 or so. Might have to try it
        Chris
        ------
        The new nugget
        I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself. - D.H.Lawrence

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          #19
          Wrinkle black?

          PS sandblasting - but make sure you protect faces & threads etc
          This is a post i wrote by mistake, which is nice...

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            #20
            Picked up a cheap vibration engraver tonight and gave it a go.


            Has certainly reduced the shiny finish a bit, but its still quite a lot cleaner/fresher than the surrounding casting. I read somewhere about bluntening the tip slightly and going over again, so ill try that.
            Chris
            ------
            The new nugget
            I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself. - D.H.Lawrence

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              #21
              Unless you either clean the rest or artificially age the weld area, you're always going to get some contrast in the colour. Freshly machined/welded metal is always going to look cleaner than metal that has been in an engine bay for 30 years.
              Imagination is more important than knowledge.

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                #22
                Sandblasting will sort it.

                Use something course.

                Don't mention the adBlocker !!

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                  #23
                  For thread closure, after several attempts at sand blasting with out getting a satisfying result i ended up going the old fashioned route:
                  Last edited by takai; 31-10-19, 06:13 PM.
                  Chris
                  ------
                  The new nugget
                  I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself. - D.H.Lawrence

                  Comment

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