Three-dimensional printing with build plates having surface topologies for increasing permeability and related methods

a three-dimensional printing and surface topology technology, applied in the direction of auxillary shaping apparatus, butter manufacture, cheese manufacture, etc., can solve the problems of needing to submerge, use additional mechanical elements, extreme care, etc., and achieve the effect of enhancing or speeding up the refilling of said build region

Inactive Publication Date: 2016-07-14
CARBON INC
View PDF9 Cites 103 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]In some embodiments, the build plate further comprising an elastomeric layer between the channel layer and the base configured to increase an elasticity of the build surface.
[0036]In some embodiments, the carrier with the polymerized region adhered thereto is unidirectionally advanced away from said build surface on said stationary build plate. In some embodiments, filling step further comprising vertically reciprocating said carrier with respect to said build surface to enhance or speed the refilling of said build region with said polymerizable liquid.

Problems solved by technology

A disadvantage of such “top down” techniques is the need to submerge the growing object in a (potentially deep) pool of liquid resin and reconstitute a precise overlayer of liquid resin.
While such “bottom up” techniques hold the potential to eliminate the need for a deep well in which the object is submerged by instead lifting the object out of a relatively shallow well or pool, a problem with such “bottom up” fabrication techniques, as commercially implemented, is that extreme care must be taken, and additional mechanical elements employed, when separating the solidified layer from the bottom plate due to physical and chemical interactions therebetween.
Such approaches introduce a mechanical step that may complicate the apparatus, slow the method, and / or potentially distort the end product.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-dimensional printing with build plates having surface topologies for increasing permeability and related methods
  • Three-dimensional printing with build plates having surface topologies for increasing permeability and related methods
  • Three-dimensional printing with build plates having surface topologies for increasing permeability and related methods

Examples

Experimental program
Comparison scheme
Effect test

example 1

High Aspect Ratio Adjustable Tension Build Plate Assembly

[0303]FIG. 6 is a top view and FIG. 7 is an exploded view of a 3 inch by 16 inch “high aspect” rectangular build plate (or “window”) assembly of the present invention, where the film dimensions are 3.5 inches by 17 inches. The greater size of the film itself as compared to the internal diameter of vat ring and film base provides a peripheral or circumferential flange portion in the film that is clamped between the vat ring and the film base, as shown in side-sectional view in FIG. 8. One or more registration holes (not shown) may be provided in the polymer film in the peripheral or circumferential flange portion to aid in aligning the polymer film between the vat ring and film base, which are fastened to one another with a plurality of screws (not shown) extending from one to the other (some or all passing through holes in the peripheral edge of the polymer film) in a manner that rigidly and securely clamps the polymer film th...

example 2

Round Adjustable Tension Round Build Plate Assembly

[0309]FIG. 9 is a top view and FIG. 10 is an exploded view of a 2.88 inch diameter round build plate of the invention, where the film dimension may be 4 inches in diameter. Construction is in like manner to that given in Example 1 above, with a circumferential wave spring assembly shown in place. Tension on the film preferably adjusted to a like tension as given in Example 1 above (again depending on other operating conditions such as fabrication speed).

[0310]FIG. 10 is an exploded view of the build plate of FIG. 8.

example 3

Additional Embodiments of Adjustable Build Plates

[0311]FIG. 11 shows various alternate embodiments of the build plates of FIGS. 7-10. Materials and tensions may be in like manner as described above.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
viscosityaaaaaaaaaa
Login to view more

Abstract

A build plate for a three-dimensional printer includes: a rigid, optically transparent, gas-impermeable planar base having an upper surface and a lower surface; and a flexible, optically transparent, gas-permeable sheet having an upper and lower surface, the sheet upper surface comprising a build surface for forming a three-dimensional object, the sheet lower surface positioned on the base upper surface. The build plate includes a gas flow enhancing feature configured to increase gas flow to the build surface.

Description

RELATED APPLICATIONS[0001]This application claims priority to United States Provisional Patent Application Ser. Nos. 62 / 102,840 filed Jan. 13, 2015; 62 / 102,861 filed Jan. 13, 2015; 62 / 106,421 filed Jan. 22, 2015; 62 / 109,983 filed Jan. 30, 2015; 62 / 110,014 filed Jan. 30, 2015 and 62 / 205,181 filed Aug. 14, 2015, the disclosures of each of which are incorporated by reference herein in their entireties.FIELD OF THE INVENTION[0002]The present invention concerns methods and apparatus for the fabrication of solid three-dimensional objects from liquid materials.BACKGROUND OF THE INVENTION[0003]In conventional additive or three-dimensional fabrication techniques, construction of a three-dimensional object is performed in a step-wise or layer-by-layer manner. In particular, layer formation is performed through solidification of photo curable resin under the action of visible or UV light irradiation. Two techniques are known: one in which new layers are formed at the top surface of the growing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): B29C67/00
CPCB29C67/0092B29C67/0088B33Y50/02B33Y30/00B33Y10/00B29C67/0062B29C71/0009B29C71/02B29C71/04B29C2035/0855B29C64/124B29C64/245G03F7/70416B29C64/20
Inventor MOORE, DAVIDTUMBLESTON, JOHN R.SAMULSKI, EDWARD T.ERMOSHKIN, ALEXANDERROLLAND, JASON P.HERRMANN, ARIEL M.FELLERS, BOB E.
Owner CARBON INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap