Glossary of 3D Printing Terms
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Retraction Retraction is the process of pulling back filament into the extruder during non-print moves to prevent oozing and stringing. It enhances surface finish, sharp details, and clean transitions between parts. Retraction settings include distance, speed, and retraction lift (Z-hop). Direct drive extruders require shorter retraction distances, while Bowden setups need longer retraction due to filament slack. Improper retraction causes under-extrusion, nozzle clogging, or blobs. Proper retraction calibration minimizes stringing, ensuring smooth surfaces and accurate dimensions. |
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