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Thread: Anyone give me info on 3D Scanning

  1. #1
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    Default Anyone give me info on 3D Scanning

    Just exploring a non laser related idea.

    I was wondering is it easy / possible to precisely 3D scan an object then easily convert that into a profile that's the opposite of that which has been scanned?

    eg. an egg and cup. You scan the egg top but can then reverse that scan to create a flat plane of a preset size with a cup shape in it that perfectly fits the egg.

    Following on from that, it is then easy to 3D print that imprinted flat plane from that reversed CAD?

    Any tips / hints on software needed?
    Last edited by White-Light; 05-31-2015 at 06:21.

  2. #2
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    No sorry .
    Eat Sleep Lase Repeat

  3. #3
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    Ha ha. Thanks Andy.

  4. #4
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    ... what's wrong with standard 3D-scanning? - it's done regularly with laserline- or beamer-grid scanning to get the surface data ... and boolean subtracting from a cup-shaped solid to get the inner form is common too ... and 3D-printing of the result is no problem either

    Viktor

  5. #5
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    Quote Originally Posted by VDX View Post
    ... what's wrong with standard 3D-scanning? - it's done regularly with laserline- or beamer-grid scanning to get the surface data ... and boolean subtracting from a cup-shaped solid to get the inner form is common too ... and 3D-printing of the result is no problem either

    Viktor
    Sounds useful. I know nothing of 3D scanning so any information / more information on software etc you can give me is useful.

    Thanks Victor.

  6. #6
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    ... look here - http://www.david-3d.com/en

    I'm using David with a DLP-beamer, what's more accurate and faster than with laserline.

    David exports STL or OBJ files, so 3D-printing or milling with one of the RepRap-softwares, CAD/CAM's (or sending it to a service provider) is no problem either ...

    Viktor

  7. #7
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    Ok thanks Victor, I'll take a look.

  8. #8
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    BTW Victor, I presume you also do 3D printing, any advice on the toughest plastics?

  9. #9
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    ... standard plastics are ABS (with heated bed) or PLA (for parts, that won't suffer heat - PLA softens above 60 degC).

    Other materials are available too, or blends with wood-, ceramic- or metal-dust for different mechanical and optical properties.

    But I'm interested in more rigid/stable parts than possible with FDM or SLA (UV-3D) printing, so using and developing SLS and other methodes for solid ceramic and metal parts ...

    Viktor

  10. #10
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    Thanks, that's useful.

    I think I'd be more interested in something quite rigid but with enough strength or flex to ensure it wasn't brittle and could withstand quite high lateral pressures. I was thinking some kind of modded ABS.

    I would add this is academic to me, but just an idea I'm exploring atm.

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