Good methods to clean extruder gear (hobbed) from filament pieces?

  • I'm using a CraftBot original to print PLA, but some of the filament has become stuck in the teeth of the extruder gear on its way into the hot end. I'm having issues with the gear becoming stuck and "clicking" instead of turning, and I suspect it is because of the clogged teeth. I haven't changed materials in a long time. I've cleared several print head clogs, but each time the gear gets back around to the one spot, it seems to get stuck again.

    Are there any good ways to clean this gear? I was thinking of putting it in a toaster oven and trying to melt the PLA off it, ideally without setting my house on fire in the process. Anyone have better ideas?

    If you hear a clicking sound, it might be as well not enough power that is delivered to the motor, so that it loses steps. You can increase the current limit given (most likely by your pololu compatible stepper drivers).

  • ben

    ben Correct answer

    6 years ago

    I mostly use a tooth brush for that kind of problem

    My coworkers got to the gear before I did, and used a tooth brush and alcohol to clean it off. We have a new print job running now, and it appears to be working so far.

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Content dated before 7/24/2021 11:53 AM