HP INCFollow


This disclosure relates to the field of 3D printing machines using plastic or metallic powder to build parts,

like powder bed fusion or binder jetting processes. The automation of these processes requires moving

the powder from the supplies to the printable area. One of the most reliable ways to convey or lift powder

is using an Archimedes screw that is located inside a tube. A problem occurs when the Archimedes screw

should be cleaned, for example, for changing the printing material. The Archimedes screw is usually long

and should be removed through one of the sides of the tube. On the other side there’s the transmission

shaft that provides torque to the Archimedes screw, that difficult the extraction of the Archimedes screw.

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