Complex shaped 3D objects fabrication
AssigneeMassivit 3D Printing Technologies Ltd
InventorsRicardo Osiroff, Moshe Uzan, Igor Yakubov, Shai Garty, Cesar Manna
Life of this patent
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Abstract
A method and apparatus for manufacturing of 3D objects. The apparatus includes a number of material deposition heads terminated by nozzles, of which one or two nozzles are configured to deposit a first material to form a first and second pattern layers. The pattern layers are laterally shifted from each other such that when the first and second pattern layers are deposited, a space (empty volume) with a varying cross section is formed. In some examples, two or more nozzles could be used to deposit the corresponding first and second pattern layers. The nozzles could move independent of each other.
Claims16
A method comprising:
- employing a first polymeric material to deposit first and second pattern layers laterally shifted from each other such that laterally shifted pattern layers form between them an empty volume with a variable cross section that varies along the first and second pattern layers;
- casting in the empty volume between the first and second pattern layers a second polymeric material to cast a complex shaped 3D object identical in shape to the empty volume between the first and second pattern layers;
- applying radiation to cure the second polymeric material and removing the first and the second pattern layers to complete manufacture of the cast complex shaped 3D object identical in shape to the empty volume between the first and second pattern layers;
- exposing the first polymeric material to water to cause it swell and break into beads, and washing out the beads with excess of water to remove the first and second pattern layers from the complex shaped 3D object.
A method comprising:
- employing a first polymeric material to deposit first and second pattern layers laterally shifted from each other such that laterally shifted pattern layers form between them an empty volume with a variable cross section that varies along the first and second pattern layers;
- casting in the empty volume between the first and second pattern layers a second polymeric material to cast a complex shaped 3D object identical in shape to the empty volume between the first and second pattern layers;
- applying radiation to cure the second polymeric material and employing at least one of a group of actions consisting of exposure to water or mechanical action to the first and second pattern layers permitting removal of the second polymeric material having the cast complex shaped 3D object identical in shape to the empty volume between the first and second pattern layers;
- and
- exposing the first polymeric material to water to cause it swell and break into beads, and washing out the beads with excess of water to remove the first and second pattern layers from the complex shaped 3D object.
Dependencies are inferred from the claim text.