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Possible extrusion problem, or my printer is talking to me.

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My UM2 is making a quiet and very fast clicking sound, it's coming from the extruder. It's not loud, you can hear it just above the print head motors from 3-4 feet away. IT sounds like morse code, and happens during the print phase. I'm wondering if it's because I'm printing at 0.06 and the motor is in fact advancing at such tiny amounts?

I can't remember if I've heard this before.

Print settings:

PLA, 2.85mm

0.06 layer height

50mm sec speed

200 degrees C, manually upped to 205 to see if that made any difference.

20% fill density.

The print looks great, have to say it seems my troubles (touch wood) have vanished apart from this very quick clicking. I tried taking a video but you can't hear it in that, there is no slipping or anything as far as I can tell.



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