Stringing (also called oozing or cobwebbing) occurs when molten filament leaks from the nozzle during non-printing travel moves, creating thin plastic threads between different parts of your print.
Primary Causes of Stringing
The most common cause is insufficient retraction, where filament continues flowing during travel. Temperature too high results in lower viscosity and easier flow. Material characteristics matter—PETG, TPU, and nylon are naturally prone to stringing. Wet filament creates steam bubbles forcing material out. Slow travel speed allows more time for oozing.
Optimal Retraction Settings
For PLA, use 4-6mm at 25-45mm/s. PETG works best at 3-5mm at 20-30mm/s. ABS needs 5-8mm at 35-50mm/s. Nylon requires 3-5mm at 25-35mm/s with thorough drying first. Our PA6-CF Filament is optimized for clean printing.
Slicer Settings That Help
Enable coasting to stop extrusion before travel. Use wipe to clean nozzle on printed surfaces. Activate combing to route travels through printed areas. Increase travel speed to 100-150mm/s for less time to ooze.
Source Quality Filaments
As a specialized source manufacturer, we supply filaments with tight diameter tolerance (±0.03mm) for consistent printing. Contact us for samples.
FAQ
How do you know whether Delrin vs Acetal — Understanding POM Homopolymer and Copolymer Differences fits a part?
Delrin vs Acetal — Understanding POM Homopolymer and Copolymer Differences fits a part when its load capacity, temperature range, moisture exposure, wear behavior, and processing method match the real service conditions.
What properties should be checked for Delrin vs Acetal — Understanding POM Homopolymer and Copolymer Differences?
Check strength, stiffness, impact resistance, heat resistance, moisture absorption, dimensional stability, friction, wear, and chemical compatibility.
What is the biggest selection risk for Delrin vs Acetal — Understanding POM Homopolymer and Copolymer Differences?
The biggest risk is choosing from a datasheet value without considering actual environment, processing method, part geometry, and long-term use.
When should Delrin vs Acetal — Understanding POM Homopolymer and Copolymer Differences be tested before production?
Testing is recommended when the part faces load, heat, chemicals, moisture, tight tolerances, regulatory requirements, or a new operating environment.
3D Printing Stringing — Frequently Asked Questions
What causes stringing and oozing between print moves?
Stringing occurs when molten filament continues flowing during non-printing travel moves. Primary causes: (1) Insufficient retraction distance. (2) Temperature too high. (3) Wet filament - moisture turns to steam. (4) Slow travel speed. (5) Material characteristics - PETG, TPU, and nylon are naturally more prone.
What are optimal retraction settings for different filaments?
PLA: 4-6mm at 25-45mm/s. PETG: 3-5mm at 20-30mm/s. ABS: 5-8mm at 35-50mm/s. Nylon: 3-5mm at 25-35mm/s with thorough drying first (80C for 4-6 hours). Enable coasting and wipe in your slicer for best results.
Where can I get quality filaments that minimize stringing?
Nylonplastic is a specialized manufacturer established in 2005, ISO certified. We supply filaments with tight diameter tolerance for consistent extrusion. Our CF and GF reinforced filaments are pre-dried and vacuum sealed. Contact us for free samples.
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