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Thread: Patterns and moulds for a cylinder head

  1. #1
    Senior Member
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    Sep 2006
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    Laidley, SE Queensland
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    Patterns and moulds for a cylinder head

    I follow this interesting old car website, todays article is part 1 of casting a replica cylinder head using modern scanning and 3D printing techniques. The interesting part is a mention that they will be 3D printing the sand moulds, i.e. no patterns to withdraw, no pattern draft required.

    http://www.prewarcar.com

  2. #2
    That's cool stuff, I'm looking forward to seeing part two of that article. Unfortunately, I couldn't open of download the accompanying video, were you able to?

  3. #3
    Member
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    Aug 2011
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    Manchester, Iowa - USA
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    It worked for me.

    It was kind of odd though, it only ran when I held the mouse cursor over the video and there didn't appear to be a download option. As soon as I moved the cursor off of the video the video reset to the beginning.

    Don
    Too many irons, not enough fire,

  4. #4
    Senior Member
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    Laidley, SE Queensland
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    For those late to this thread, the cylinder head story will move down the list one day at a time, you may need to scroll a page or four to find it.

    For me, the little video which shows the process of scanning the head, runs when I hold the cursor on it.

  5. #5
    The 3d printing of the sand mold is probably an ExOne printer. I've been to a foundry that had one of those. It does it by depositing sand and glue layer by layer until it builds a mold. So since you don't have any pattern to pull you can put in a negative or no draft.

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