HP INCFollow


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.

Creative Commons License

Creative Commons License
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