Disclosure to explain a system that will enable rat‐hole detection inside a 3D printing build Unit. One of
the main problems observed when using different kind of powders is the flowability these kinds of
powders have. This powder flowability and consistency differences make the current system to have
problems to ensure powder feeding to Archimedes. For instance, TPU powder properties is showing
several cases of rat‐holes, which is the name under which this phenomenon is known. Powder cannot
flow, not covering feeding areas and therefore not supplying powder to archimedes screws.
This disclosure will present a system that will provide real time feedback that will help to monitor the existence of these rat-holes.
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INC, HP, "POWDER RATHOLES DETECTION SYSTEM FOR 3D PRINTING SYSTEM", Technical Disclosure Commons, (February 07, 2020)