Over extruding and feeding gear is grinding Ender 3 pro

Question

This issue is completely leaving me lost, my printer extrudes too much and leaves blobs yet the gear will just suddenly start grinding as soon as it begins to fill in the outline of my print. The grinding keeps going and the filament coming out just continues to blob leaving my prints a complete disaster. What confuses me is the fact that if the gear was grinding it would no longer feed more filament. The blobs proceed to then harden leaving my end essentially stuck dragging across cooled filament and pouring out even more of it into a disaster.

BalooRM · Answer

It sounds like a setting mismatch between your slicer settings and the physical printer configuration. Diagnostic and informational questions follow:

Can you provide more details of your machine configuration and your slicer settings?
Are you using the Creality Slicer?
Can you also provide more information about what you are attempting to print?
Are you printing a downloaded design or your own?
Have you printed successfully before? If so, the key question would be to ask what has changed.

There are a number of settings to check, but the first one that comes to mind is the filament diameter setting in the slicer. Secondary to that would be the flow percent. Check the diameter of your filament versus the setting in the slicer. The grinding of the gear makes me think that the physical filament diameter is larger than the slicer setting.  This could explain extruding too much material and producing "blobs" and also the grinding.

Over extruding and feeding gear is grinding Ender 3 pro

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