aluminum panels

Discussion in 'BigBox General Chat' started by KNM3D, Jan 6, 2016.

  1. KNM3D

    KNM3D Well-Known Member

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    @E3D and BIGBOX TEAM:

    do you see any issue with having my BIGBOX made from aluminum panels instead of acrylic?

    I have the DXF files modified already to have my buddy make me the panels.
    just wondering if you foresee issues.

    thank you,
    KNM Designs
     
  2. Mike Kelly

    Mike Kelly Volunteer

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    This is a good question. If the aluminum is flat I can't see any reason why it would be any different structurally.

    In a perfect world you'd cut it with a waterjet, but a small-ish end mill could manage as well
     
  3. KNM3D

    KNM3D Well-Known Member

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    well yeah he he ensured the surface was flat by .0025 and it of course would be water jet
    :D
    I was more asking for issues potentially posed with electronics
     
  4. elmoret

    elmoret Administrator

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    No issues with electronics as long as you properly terminate all your wiring so there's no stray conductors.
     
  5. KNM3D

    KNM3D Well-Known Member

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    aw sweet. will def have to make panels little by little.
     
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  6. R Design

    R Design Well-Known Member

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    Anyone know anything about the pros and cons of the stuff out of which the Ultimaker 2 is built? It seems to be a sandwich of plastic with a layer of aluminium on each side.... It may be called "dibond"? Probably more expensive than acrylic it may be easier to machine than aluminium....
     
  7. KNM3D

    KNM3D Well-Known Member

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    aluminum is very easy to machine.
    if I wasn't so busy I would have all the panels I needed done already.
     
    #7 KNM3D, Jan 7, 2016
    Last edited: Jan 7, 2016
  8. KNM3D

    KNM3D Well-Known Member

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    maybe wire cut the aluminum?
     
  9. Clare - E3D

    Clare - E3D Active Member
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    No issues! As long as you don't need your BigBox to be very portable.o_O
     
  10. elmuchacho

    elmuchacho Member

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    Which type of wire cut the aluminium never heard

    Yep it's called dibond and there is lot of advantage using it. By combining multiple material you increase the overall characteristic of finish material and reducing, cost weight etc ...
     
  11. KNM3D

    KNM3D Well-Known Member

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    really didn't think it was very portable as it was :D
    but I totally understand what you are saying. the weight would/will be enormous for the application.
     
  12. veng1

    veng1 Member

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    The data in the Dibond_Broschuere_2015_EN.pdf (I don't remember where I found it) shows a graphic indicating that 3mm Dibond, 2.4mm solid aluminum and 6.8mm acrylic have the same stiffness.

    By weight it is Dibond, 3.8 kg/m^2, Al, 5.6 kg/m^2, acrylic, 8.2 kg/m^2.

    From this, it is easy to see why Nophead used 3mm Dibond in his Mendle90.

    As aluminum composite materials go, Dibond if fairly expensive but from other manufacturers, similar material is available in 6mm. By my limited understanding, for the same thickness Al outer shell, twice as thick is nominally 4X as stiff. Perhaps Tim could comment.

    6mm Dibond or similar would actually weigh less that the current acrylic for a "light weight" BigBox that is stiffer.
     
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  13. KNM3D

    KNM3D Well-Known Member

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    went to try to bring the lines in from the dxf files to mess with them in solidworks.
    the lines arn't even connected in some spots.

    im guessing that because I took them out of the block status and exploded the lines?
     

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