Few questions

Discussion in 'Technologies and Hardware' started by Hisagomaru, May 3, 2013.

  1. Hisagomaru
    Hisagomaru New Member
    1. Can i print one thing with 2 or more materials?
    (ex. steel exterior, with plastic coating inside.)
    2. How food-safe is metal? Would a salt container be toxic?
    3. what about pepper? :p
     
  2. AmLachDesigns
    AmLachDesigns Well-Known Member
    1. Not with Shapeways at present;

    2. Only the glazed ceramic is food safe.
     
  3. Hisagomaru
    Hisagomaru New Member
    But is it ok just to contain the salt?
    its not like im going to eat with it
     
  4. Youknowwho4eva
    Youknowwho4eva Shapeways Employee Community Team
    If you are holding the salt for decorative purposes, yes. If you plan on using the salt, only ceramics is certified food safe.

     
  5. mkroeker
    mkroeker Well-Known Member
    Remember that salt is hygroscopic, i.e. attracts moisture. The end result with shapeways' "stainless steel"
    material would be interesting corrosion effects from both the sintered steel and the bronze filler - probably
    reddish-brown, green and blue salt, maybe nouvelle cuisine but not food grade.
    Silver might work, but would surely be quite expensive. Also the required minimum wall thickness would
    probably lead to heavy, clunky objects. Strong&flexible plastic (nylon) sealed with a food-safe lacquer (some
    people here have suggested types used for winery equipment) is probably your best bet, but I doubt you will
    get official approval from shapeways for this.
     
  6. AmLachDesigns
    AmLachDesigns Well-Known Member
    Silver would surely be expensive. And it would still corrode - containers for salt traditionally had glass liners or else were gilded to prevent this.

    But the objects themselves would be less heavy or clunky than in Stainless or ceramic:

    Min Wall Supported: 0.6mm (Regular), 0.8mm (Glossy & Premium)
    Min Wall Free: 0.6mm (Regular), 0.8mm (Glossy & Premium)
     
    Last edited: May 4, 2013
  7. stannum
    stannum Well-Known Member
    Getting into the blog not enough?
     
  8. mkroeker
    mkroeker Well-Known Member
    Not sure - that item is for food that brings its own eggscellent food safe container... unless you refer to the accumulated spam in the blog comments, which is probably for decorative purposes. :confused
     
  9. Hisagomaru
    Hisagomaru New Member
    Wait, What do you mean by "getting Shapeways approval"?
    is it just the wall thickness thing?
     
  10. mkroeker
    mkroeker Well-Known Member
    Getting shapeways to confirm that anything other than their glazed ceramics is "certified food safe".
    Nothing to do with wall thickness, but with porosity and chemical resistance.