Diagnosing and Fixing an Unknown 3D Printing Failure

The video tutorial details the troubleshooting process for a 3D printing issue involving layer gaps. The creator shares various diagnostic steps, including checking idler tension, reflashing firmware, and replacing parts like the nozzle and thermistor. After multiple failed attempts, the problem is traced to gear misalignment in the extruder. The solution involves upgrading to a Titan extruder, followed by calibration and testing. The video concludes with lessons learned and advice on maintaining spare parts for future issues.

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