After SLS printing any internal spaces retain the un-fused but packed powder that was in the bed. I am hoping to add channels as wire raceways internal to the part.
Any experiences with this - is it worth the trouble?
More specifically, any recommendations for "flexible-auger" type tools to clean out around the bends? The residual powder is of a consistency where I expect an appropriately shaped wire could dislodge it.
(Concept, this is polypropylene. Scale: raceways are currently 1.5mm - 2mm in diameter.)