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What is causing these severe print errors on an Ender 3?

First of all, I would make sure that my bed is properly leveled. Download one of the bed level tests and keep adjusting until you get good, slightly smooshed lines. It's possible that the nozzle was ...
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Severe blobbing prevents printing. What settings can I change to fix this?

That's not excessive Filament, it is "blobbiong". Blobbing happens in several cases, but the most common are: The printed filament is deposited too hot on other hot filament, resulting in ...
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Severe blobbing prevents printing. What settings can I change to fix this?

More information would be useful, to narrow the possible causes, but consider to perform an extrusion step check. This involves marking the filament at the most convenient location. This would be at ...
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