Stringing in 3D printing typically occurs during the printer's travel moves, which are the movements made by the printer's nozzle between different parts of the printed object where no material is being extruded. During these movements, the melted filament material can continue to ooze out of the nozzle, creating thin strands or "hairs" that can connect different parts of the object and result in stringing. Adjusting the printer's settings to include retraction during travel moves can help reduce the amount of material left behind and minimize stringing.
Check out our guide to help eliminate stringing on your 3d prints.