Build plates for continuous liquid interface printing having permeable base and adhesive for increasing permeability and related methods, systems and devices

Patent metadata

Field	Value
Publication number	US-11020898-B2
Application number	US-201615546888-A
Country	US
Kind code	B2
Filing date	Jan 29, 2016
Priority date	Jan 30, 2015
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

A build plate for a three-dimensional printer includes a rigid, optically transparent, gas-permeable planar base having an upper surface and an opposing lower surface; a gas permeable adhesive layer on the base upper surface; and a flexible, optically transparent, gas-permeable sheet having upper and lower surfaces, the upper surface comprising a build surface for forming a three-dimensional object, the sheet lower surface positioned on the adhesive layer opposite the base.

First claim

That which is claimed is:

1. A build plate for a three-dimensional printer comprising:
a rigid, optically transparent, gas-permeable planar base having an upper surface and an opposing lower surface;
a gas permeable adhesive layer on the base upper surface; and
a flexible, optically transparent, gas-permeable sheet having upper and lower surfaces, the upper sheet surface comprising a build surface for forming a three-dimensional object, the sheet lower surface positioned on the adhesive layer opposite the base, wherein the planar base comprises a gas-impermeable portion and a gas-permeable portion, the upper surface being on the gas-permeable portion, wherein the planar base gas-permeable portion comprises fused fiber optic tubes, and the fused fiber optic tubes are arranged at an orientation that is angularly displaced from vertical such that gas flow is permitted from a side of the base.

2. The build plate of claim 1 , wherein the planar base comprises laser-cut porous glass.

3. The build plate of claim 1 , wherein the planar base comprises etchable materials, wherein the etchable materials are at least partially removed to form apertures therein using a masking material.

4. The build plate of claim 1 , wherein the gas-permeable portion comprises laser-cut porous material or fused fiber optic tubes.

5. The build plate of claim 1 , wherein the fused fiber optic tubes comprise glass or polymer tubes.

6. The build plate of claim 1 , wherein the adhesive layer comprises a poly(dimethylsiloxane) (PDMS) film.

7. The build plate of claim 1 , wherein the fused fiber optic tubes are arranged perpendicular to the gas permeable film.

8. The build plate of claim 1 , wherein the fused fiber optic tubes are gas permeable in a direction perpendicular to the gas permeable film.

9. The build plate of claim 1 , wherein the gas-permeable sheet is oxygen-permeable.

10. The build plate of claim 1 , wherein a thickness of the sheet is less than about 150 μm.

11. The build plate of claim 1 , wherein the base comprises sapphire, glass, quartz or polymer.

12. The build plate of claim 1 , wherein the sheet comprises a fluoropolymer.

13. The build plate of claim 1 , further comprising at least one additional gas permeable adhesive layer on the gas permeable sheet and at least one additional gas permeable sheet on the at least one additional gas permeable adhesive layer.

Assignees

• Carbon Inc

Inventors

• Moore David
• Tumbleston John R
• Samulski Edward T
• Ermoshkin Alexander
• Rolland Jason P
• Herrmann Ariel M

Classifications

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B29C64/245

  Platforms or substrates (support structures intended to be sacrificed after manufacture B29C64/40) · CPC title

• B29K2105/0058

  Liquid or visquous · CPC title

• B29C64/264

  Arrangements for irradiation · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title