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  1. #1

    Make a rough surface smoother

    Hi all,

    I have printed some parts with a 3D-printer from Voxeljet. The material I used was PMMA.

    These products have a very rough surface and have a highly absorbent surface.

    I have tried dipping the products in a hot wax, but this wax pulls in the products and still gives a rough surface. I also tried giving the products a vapor treatment with aceton, but the products dissolves.

    Do you know anything to make this surface smoother?

  2. #2
    Super Moderator curious aardvark's Avatar
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    what's pmma ?

  3. #3
    Quote Originally Posted by curious aardvark View Post
    what's pmma ?
    http://www.voxeljet.de/en/systems/material/

  4. #4
    Technologist GOC's Avatar
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    - You could try some XTC-3D, its pretty adherent to most materials and it leaves a nice glossy finish. It does tend to fill in the fine details and thicken the part a bit, so fitted parts may need some final sanding. Another neat feature of the XTC-3D is that it improves the clarity of the Taulman T-Glase product line, you can see images HERE.

  5. #5
    Engineer
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    Quote Originally Posted by curious aardvark View Post
    what's pmma ?
    Basically Pexiglass/acrylic, poly methyl methacrylate is just the polymer name.

  6. #6
    Engineer
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    The only way I know to get a good surface with acrylic is to cast it, printing, will just not work, as far as I know without post treatment. I am assuming you still see the internal structure from the infill right?

    Also, what I don't understand is it's meant for casting, what reason are you using it for?

  7. #7
    Engineer-in-Training
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    Jun 2014
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    Try acrylic glue.

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