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US 2021/0237361 A1Published application
3D Printer for the Production of Spatial Plastic Molded Parts
AssigneesEntex Rust & Mitschke GmbH, Novo-Tech GmbH & Co. KG
InventorsHolger Sasse, Harald Rust
Life of this patent
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Abstract
3D printing of moldings takes place by an extruder in which solid plastic is melted, the melt being discharged through a die which can be closed completely or partially or opened completely or partially and the melt which is not discharged through the die is returned into the extruder.
Claims37
-36. (canceled)
A method for 3D printing, comprising:
- producing a melt of liquid plastic by liquefaction of a plastic that is mixed with additives, additions and fillers in an extruder;
- applying the liquid plastic through a die that can be closed;
- effecting a backflow or leakage of the melt in the extruder when the die is closed;
- and
- creating a melt tape or a melt thread or a melt strand or a melt point by extruding the melt through the die.
2 more elements
Dependencies are inferred from the claim text.