1 Topic by tomirving92

  • tomirving92
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  • Registered: 2013-05-02
  • Posts: 29

Topic: J-Head PEEK clogged with PLA

Swapped out the original extruder for a J-head a few days ago and haven't been able to successfully print with it.

It was extruding freely for the first few dozen mm when I first tried it, but then it became clogged and the hobbed bolt was stripping the filament.

I removed the filament, and unscrewed the peek from the nozzle. I then removed the set screw and PTFE liner. It looks like the filament melted further up the PEEK, in a space between the liner and the beginning of the nozzle screw, then hardened. I'm unable to screw the nozzle back in now that the plastic has hardened.

I've been googling around, but the recommended bathing in acetone obviously won't work with PLA.

What's the best way to remove the clogged PLA from inside the PEEK barrel?

Thanks as always

Solidoodle 3. Lawsy MK5. J-Head. Glass over bed (wood).

2 Reply by tomirving92

  • tomirving92
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  • Registered: 2013-05-02
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Re: J-Head PEEK clogged with PLA

Progress: Brought the nozzle to a high temperature, screwed it into the barrel, then removed it again. A few times doing this has transferred the plastic from the PEEK to the nozzle which I'm able to remove more easily.

Solidoodle 3. Lawsy MK5. J-Head. Glass over bed (wood).