Dry sand or greensand

Discussion in 'Lost PLA casting' started by KDM, Apr 6, 2021.

  1. KDM

    KDM Lead

    Do folk drop the 3D print into simple, clean, dry sand with a sprue for lost positive casting?
    Would there be any advantage in casting the positive in greensand?
     
  2. rocco

    rocco Silver

    Lost pla casting is not a sand casting process like lost foam casting rather it is an investment casting process meaning the pattern is embedded in a plaster or ceramic based mold material then the pattern and mold are fired to burn out the pattern leaving behind a hollow mold into which molten metal can then be poured.
     
    KDM and Tobho Mott like this.
  3. KDM

    KDM Lead

    Aa
    Ahhhh.. THAT's the difference. Thank you!
     
  4. Fulmen

    Fulmen Copper

    Think printable "lost wax"
     
  5. Melterskelter

    Melterskelter Gold Banner Member

    rocco likes this.
  6. rocco

    rocco Silver

    Interesting. So basically that would be using silicate bonded sand as the investment, somebody here needs to try that to see if it's a viable method.
     
    Last edited: Apr 6, 2021

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