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Hey everyone,
I am currently recalibrating my printer after.not using it for a while. When doing a flow test I noticed these blobs forming in the middle of the circles.
AFAIK these are often caused by moistures in the filament. I already dried the filament at 50°C for a couple hours in the oven and the problem persists. So I guess I should simply get rid of the filament and open a new pack?
What's your assessment?
Wild guess here:
Maybe your hotend thermistor is failing, but not dead, cutting out intermittently, which could cause the hot end temperature to be fluctuating, thus alternatively under or over extruding.
To see if your filament is humid, raise your Z, and with a magnifying glass look closely at the extruded stream while you extrude. If wet it will be uneven and/or have bubbles.