Methods for three-dimensional model printing

Patent metadata

Field	Value
Publication number	US-10335994-B2
Application number	US-201715684948-A
Country	US
Kind code	B2
Filing date	Aug 24, 2017
Priority date	Mar 13, 2000
Publication date	Jul 2, 2019
Grant date	Jul 2, 2019

Abstract

A method of printing a three-dimensional object is provided. The method includes selectively dispensing, layer by layer, one or more materials to form the three-dimensional object; selectively dispensing, layer by layer, one or more materials to form a support construction for the three-dimensional object; selectively dispensing, layer by layer, one or more materials to form a rigid exterior construction around at least part of the support construction, the rigid exterior having substantially similar strength and elasticity to the three-dimensional object; and forming a release construction around the rigid exterior construction, the release construction being between the rigid exterior construction and the three-dimensional object.

First claim

The invention claimed is:

1. A method of printing a three-dimensional object, the method comprising:
selectively dispensing, layer by layer, one or more materials to form the three-dimensional object;
selectively dispensing, layer by layer, one or more materials to form a support construction for the three-dimensional object;
selectively dispensing, layer by layer, one or more materials to form a rigid exterior construction around at least part of the support construction, the rigid exterior having substantially similar strength and elasticity to the three-dimensional object; and
forming a release construction around the rigid exterior construction, the release construction being between the rigid exterior construction and the three-dimensional object.

2. The method of claim 1 , wherein forming the release construction comprises selectively dispensing, layer by layer, one or more materials.

3. The method of claim 1 , wherein forming the release construction comprises dispensing a release material to fill a space formed between the three-dimensional object and the rigid exterior.

4. The method of claim 1 , wherein the release construction has a lower modulus of elasticity and lower strength than the three dimensional object.

5. The method of claim 1 , wherein the support construction comprises modeling material and support material and the method comprises:
forming a grid of the modeling material within the support material.

6. The method of claim 1 , comprising:
radiating deposited layers, wherein the release construction remains in a non-polymerized state when exposed to radiation.

7. The method of claim 1 , comprising:
radiating deposited layers, wherein the release construction partially solidifies upon radiation.

8. The method of claim 1 , comprising:
removing the support construction as a single unit.

9. The method of claim 1 , wherein the support construction is divided into a number of smaller support construction portions and the method comprises:
printing on the support construction portions, instruction indicators for a preferable direction or order for removal of the support construction portions from the three dimensional object.

10. The method of claim 1 , wherein the support construction is divided into a number of smaller support construction portions and the method comprises:
displaying on an output device, indicators indicating preferable removal instruction for at least one portion of the support construction from the three dimensional object.

Assignees

• Stratasys Ltd

Inventors

• Napadensky Eduardo
• Kritchman Eliahu M

Classifications

• B29C67/24

  characterised by the choice of material · CPC title

• B29K2063/00

  Use of {EP, i.e.} epoxy resins {or derivatives thereof}, as moulding material · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B29C41/52

  Measuring, controlling or regulating · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title