and I heard a "stock"
Maybe it wants to make a financial investment?
That is probably the extruder motor slipping backwards (losing steps). Fix this by printing a little bit slower or hotter. Try half the speed you were printing at before (turn feed rate to 50% if you want) and/or raise the temp to 240C.
The printer prints fine at 240C but you may get much more stringing - tiny strings across gaps. So slowing down the print might be the better solution for bracelets.
Also the bottom layer is the hardest because if you are printing it .1mm thick (thickness of paper - very thin) and you are off by just .03mm (1/3 thickness of paper) then the printer is putting out too much or too little plastic by 30%. So if possible try to print the first layer .3mm thick (I think this is default in Cura).
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illuminarti 18
What speed and layer height are you printing at? It sounds like you may be printing faster than the extruder is happy with?
You should also check that the 3rd fan, on the back of the print head is on constantly - even when you aren't printing. It should come on as soon as the printer is powered on.
Filament isn't that sensitive to temperature, btw - don't bother adjusting the temperature by a degree or two; it's ok to change it in 10 degree increments, for the most part. 230 or even 240 should be fine for PLA, especially if you are printing fast.
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