Because some 3D printing filaments are hygroscopic, meaning that they absorb moisture from the air, prolonged exposure to even moderately humid room air causes moisture saturation. After 150 hours in standard conditions, PLA filament may swell up to 40 micrometers before reaching its saturation point. 3D printers rely on tight tolerances and extremely small layer heights. Before the print even gets underway, an increased filament diameter of even 20 – 40 microns, (roughly the width of a human hair) can derail a build before it ever begins.
An Alternative Drying Solution Replaces Traditional Methods As the industry utilizes a high-temperature reflow process, moisture sensitivity in SMT remains a constant problem. Serious manufacturing
Dry Box Desiccant Storage within the PCB Manufacturing Environment: Uses, History, Selection, and Performance
Manufacturing Uses of Desiccator Cabinets for Printed Circuit Boards (PCBs) The discussion regarding ‘dry box’ or desiccant storage of MSD’s (Moisture Sensitive Devices) has increased