HP INCFollow

Abstract

This disclosure relates to the field of additive manufacturing. 3D printers that rely on agent jetting

technology require a very precise distance between print head nozzles and the powder bed surface. A

large distance between the print head nozzles and the powder material can lead to drop trajectory

errors, sprayed drops, and other image quality errors layer by layer which will end up affecting final part

mechanical, dimensional and cosmetic properties. On the other hand, a small distance can cause print

head contamination or even interference between print heads and printed parts causing major defects

in the plot.

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