What is a dual extruder 3D printer?

Dual extruder = printer with two extruders. Enables printing two materials/colors at once, e.g. main material + dissolvable PVA support.

Advantages

  • Dissolvable supports - PVA in water, HIPS in limonene
  • Two-color printing
  • Material combinations - flexible + rigid

Types

  • Independent Dual Extruder (IDEX) - 2 independent heads, Snapmaker J1
  • Toolchanger - multiple heads auto-swapped
  • Single hotend, multiple filaments - AMS Bambu Lab

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