Stringing

Stringing occurs when thin threads of filament are left between separate parts of a print during travel moves. This is caused by filament oozing from the nozzle while the print head moves.

Common Causes

1. Insufficient retraction — The filament isn’t pulled back enough during travel
2. Temperature too high — Lower viscosity leads to more oozing
3. Travel speed too low — Slower moves give more time for oozing
4. Wet filament — Moisture creates steam and inconsistent extrusion

Recommended Fixes

1. Increase retraction distance (Bowden: 4-7mm, Direct Drive: 0.5-2mm)
2. Increase retraction speed (25-50mm/s)
3. Lower nozzle temperature by 5-10°C
4. Increase travel speed
5. Enable “Combing” or “Avoid crossing perimeters”
6. Dry your filament if moisture is suspected