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nozzle blocked

Hello


My "creatr" nozzles are completely blocked. I tried to unscrew the allen screw located behind the fansĀ but the "heat cartridge" absolutely does not move. What is going on? Is there another screw notdocumented?


3 people have this problem

how can i clean the nozzels, both are blocked
I have a Laepfrog Dual. On that machine: 1) Turn on the extruder heater and let it come up to temperature. 2) With a wrench, unscrew the brass nozzle. (Be careful, it will be very hot.) 3) While the extruder is hot, try to extrude some material to make sure that it flows through the exruder head freely. 4) If you are using ABS, soak the nozzle in acetone for a few hours. Then clean out the softened ABS. You may need to push a small wire through the opening. I recommend a high "E" electric guitar string. These are about .01" [.25mm] or slightly larger in diameter. 5) If you are using PLA, I normally burn out the old material with a small propane torch. Again you may need to use a small wire to clear the opening. When the nozzle is clean, heat the extruder again and screw it back on. (Just until it is snug.) You may need to level the printer bed again.
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Filament Guide

ABS
  • Extrude at ~ 225o C.
  • Requires heated bed.
  • Works reasonably well without cooling.
  • Adheres best to polyimide tape.
  • Filament tolerances are usually tighter.
  • Prone to cracking, delamination, and wraping.
  • More flexible.
  • Can be bonded using adhesives or solvents(Acetone or MEK).
  • Fumes are unpleasent in enclosed areas.
  • Oil Based.
PLA
  • Extrude at ~ 180-225o C.
  • Benefits from heated bed.
  • Benefits greatly from cooling while printing.
  • Adheres well to a variety of surfaces.
  • Finer feature detail possible on a well calibrated machine.
  • Prone to curling of corners and overhangs.
  • More brittle.
  • Can be bonded using adhesives.
  • More pleasant smell when extruded.
  • Plant Based.

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