New SUNLU AMS Lite Heater Keeps Filament Dry for Better Print Quality

• A twelve-hour overnight print can turn out fine, or it can come back stringy and inconsistent with no change to the slicer settings that would explain why. The usual cause is moisture. A spool left in an open holder for a few humid days absorbs enough water to compromise a print without giving any warning…

A twelve-hour overnight print can turn out fine, or it can come back stringy and inconsistent with no change to the slicer settings that would explain why. The usual cause is moisture. A spool left in an open holder for a few humid days absorbs enough water to compromise a print without giving any warning beforehand. Anyone running a multi-material AMS setup over time has seen this, especially with more moisture-sensitive materials such as nylon and PETG, though even PLA can degrade after prolonged moisture exposure. The standard fix, drying the spool separately, works in principle but rarely fits real workflows, since it means pausing an active queue or planning a drying cycle a day in advance. This is the problem Chinese 3D printing technology firm SUNLU built the AMS Lite Heater to so