Foaming FDM Filament

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Basics

  • FDM Filament that has had a Blowing Agent added to the filament
  • Typically it is heat activated, so heat can control the foam amount
  • A Relatively New Concept
  • Some "Wood" Filaments use this method to allow for a similar finish, and properties to wood (Although some do use actual cellulose)
  • Can allow for low density parts
  • MAY allow for 3D Printed Insulation if a Higher Temperature Plastic, and PERHAPS a higher temperature blowing agent
  • Also look into gas injection as an option

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