Overview of PEEK Material PEEK (Polyether Ether Ketone) is a high-performance polymer known for its remarkable properties and versatility. PEEK occurs in two phases: amorphous and semi-crystalline. When 3D printing, the material remains in the amorphous phase, which facilitates precise and durable printouts of even large models. PEEK in its amorphous state exhibits less shrinkage and improved stress distribution during printing. Transitioning PEEK to its semi-crystalline phase requires additional heat treatment.

 

Amorphous PEEK Printing Parameters To achieve optimal results when 3d printing with PEEK filament, use the following settings:

  • Nozzle Diameter (mm): 0.4

  • Layer Height (mm): 0.15

  • Outer Wall Speed (mm/s): 20

  • Inner Wall Speed (mm/s): 20

  • Infill Speed (Bottom/Top) (mm/s): 25

  • Infill Speed (mm/s): 30

  • Infill Sparse Density (%): 100

  • Material Flow (%): 87

  • Material Print Temperature (°C): 425

  • Material Standby Temperature (°C): 390

  • Bed Temperature (°C): 110

  • Chamber Temperature (°C): 75

  • Support XY Distance (mm): 0.5

  • Support XY Distance (Overhang) (mm): 0.3

  • Cooling Fan Max Speed (%): 100

  • Cooling Fan Min Speed (%): 60

  • Retraction at Layer Change: No

 

Additional Notes

  • Preheating and Stability: Ensure the printer is preheated adequately, and the environment is free from drafts to maintain consistent chamber temperatures.

  • Post-Processing: Consider post-print annealing to transition PEEK parts to the semi-crystalline phase for enhanced mechanical and thermal properties.

  • Adhesion: Use a PEEK-specific adhesive or high-temperature bed surface for improved adhesion like Magigoo HT.