What causes lines in the middle of a 3d print? Solve under extrusion problems mid print, halfway up!

Ender 3 (V2,Pro) Extruder Skipping: Ender 3 not Extruding?

3D Printing a Lost Button

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How to Diagnose & Fix Serious Under Extrusion #FixMyPrint

The Biggest Pain In 3D Printing - Hotend Clogs & Jams

Stops Extruding Mid Print

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Makers Empire: Empty Layers Error Solved

Ghosting Fix and Beginner Tools - Day 11 of 100 3D Printing Journey

Scaffold-free robotic 3D printing of a double-layer Clay shell

Schematic of two different 3D bio-printing methods and major functions.