Currently, powder recyclability is very important to calculate total cost of ownership (TCO) and
3D printing efficiency.
Below is explained a way to detect and identify particles surrounding the external or internal
surface from fusing module glasses. These particles may interfere in the energy propagation and
irradiance to the bed.
This system can detect and decide if the number of particles present on the glass will affect print
quality and advise the user to clean it or replace it if needed due to degradation.
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INC, HP, "FUSING MODULE PARTICLES DETECTION", Technical Disclosure Commons, (November 29, 2018)