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.

PEEK Filament Semi-crystalline and amorphous 3d printing

 

Amorphous PEEK Printing Parameters To achieve optimal results when 3d printing with PEEK filament and VXL111 support, use the following settings:

Nozzle Diameter (mm): 0.4 Outer Wall Speed (mm/s): 20
Layer Height (mm): 0.15 Inner Wall Speed (mm/s): 20
Chamber Temperature (°C): 75 Infill Speed (Bottom/Top) (mm/s): 25
Bed Temperature (°C): 110 Infill Speed (mm/s): 30
Material Print Temperature (°C): 425 Support XY Distance (mm): 0.5
Material Standby Temperature (°C): 390 Support XY Distance (Overhang) (mm): 0.3
Material Flow (%): 87 Cooling Fan Max Speed (%): 100
 Infill Sparse Density (%): 100 Cooling Fan Min Speed (%): 60

 

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.