Speed around 20mm/s at 0,1 layer height, 212C.
The problem manifests itself in a different way to regular skipping:
It is printing slowly happily quietly and suddenly there's a noise like when changing filament, the extruder motor starts going back at rapid speed, of course grinding the filament. And then the printing resumes but without any returning of the retracted filament. It happens rarely but sometimes multiple times per print at the same spot. Sometimes the print manages to continue with ~2 layers hanging on air, mostly the print fails after this "stunt".
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Dim3nsioneer 558
Sounds to me as if you experience skipping of the extruder motor. As it happens at 3mm height, it's most probably because you try to print to fast and/or at too low temperature. Can you please give us those numbers (speed and temperature)?
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