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Engineering Filaments
Flexible and Support Materials
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Description
Water-soluble support material.
Common use cases
Internal cavities, complex support interfaces, and inaccessible support structures.
Advantages
Dissolves in water; enables geometries that would otherwise trap supports.
Disadvantages
Very moisture-sensitive; expensive; slow to dissolve; can clog or degrade when stored improperly.
Printing tips and recommendations
Keep sealed with fresh desiccant and dry before use. Print from a dry box because PVA absorbs moisture rapidly. Use only for interfaces or inaccessible supports to limit cost and purge waste. Flush the nozzle after use and do not leave PVA loaded in a warm, humid machine.
X2D guidance
Keep sealed and extremely dry. Use only for support interfaces where soluble support provides a real benefit.
Support-material guidance
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