Printing Flexibles

NinjaFlex 1.75 mm

  • Temperature: 255°C

  • Extrusion Multiplier: 0.9

  • Retraction: 3 mm

  • Retraction Speed: 40 mm/s

  • Coasting: 1mm

  • Printing speed: 40 mm/s @ 0.2 mm layer height and 0.4 mm nozzle => 3.2 mm3/s. Do not exceed this printing speed. If your model has small pillar then decrease the printing speed to 25 mm/s and the temperature to 240°C, this make sure that there is no stringing on small pillars. 

Diabase X60 1.75 mm

  • Temperature: 230°C

  • Extrusion Multiplier: 1

  • Retraction: 3 mm

  • Retraction Speed: 30 mm/s

  • Printing speed: 20 mm/s @ 0.2 mm layer height and 0.4 mm nozzle => 1.6 mm3/s. Do not exceed this printing speed. At these printing speeds not stringing could be observed. 

NinjaFlex 3 mm

  • Temperature: 230-240°C

  • Extrusion Multiplier: 1

  • Retraction: 4 mm

  • Retraction Speed: 60 mm/s

  • Coasting: 1.6 mm

  • Printing speed: 40 mm/s @ 0.2 mm layer height and 0.4 mm nozzle => 3.2 mm3/s. It is possible to go faster, however increase the temperature then slightly and you might experience more stringing. If you print small features do not print too fast. Also do not print fast if you print without infill and/or the model has steep overhangs.

FilaFlex Ultra-Soft 3 mm

  • Temperature: 220-230°C

  • Extrusion Multiplier: 1.1

  • Retraction: 4 mm

  • Retraction Speed: 60 mm/s

  • Coasting: 1.6 mm

  • Printing speed: 30 mm/s @ 0.2 mm layer height and 0.4 mm nozzle => 2.4 mm3/s. It is possible to go faster, however increase the temperature then slightly and you might experience more stringing. If you print small features do not print too fast. Also do not print fast if you print without infill and/or the model has steep overhangs.

Prusa Edition

When printing with flexibles on the Prusa MK3 remove these G-code lines from your Start G-Code, since it extrudes too much material in too little time. Use a Skirt in your slicer instead.

G1 Y-3.0 F1000.0 ; go outside print area
G92 E0.0
G1 X60.0 E9.0  F1000.0 ; intro line

G1 X100.0 E12.5  F1000.0 ; intro line
G92 E0.0

Also be aware that flexible filaments really like to stick to the PEI sheet on the Prusa. To ease the removal of your printed object use some glue stick on your printbed and increase the "Live adjust Z" by 0.1 mm.

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