The surface of the printout comes out matte and porous, and strings are formed over the non-print area. When printing with damp filament, there is usually an extraneous sound similar to hissing or crackling. At the same time, manufacturers offer drying modes for most of their consumables. Indeed, many users do not encounter problems with wet filament. It is widely believed that PLA, PETG, and ABS have little moisture absorption. Characteristic features can be clearly seen: loose surface of the part, filament lint over the entire length of the threads. Wet filament makes it drastically more difficult to adjust the print mode, and it is relatively easy to detect excessive humidity.Įxtremely wet PETG. Major problems and their solutions Humidity It might be hard to determine a specific cause from external signs, that is why it is better to consistently check and rule out all the possible reasons. large melt zone or a large diameter nozzle.The defect occurs most often with PETG printing, but it is possible with other materials as well. When the nozzle is idly moving from one printing area to another within one layer, the melted filament may slightly leak and form a string between the start and end points of the route. We will consider the process of thread formation during nozzle movement, generally known as stringing or oozing.

Printing with FDM technology might result in a number of defects due to incorrect mode, uneven quality of consumables, or some printer-related issues.

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