CA2097357A1 - Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer data - Google Patents
Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer dataInfo
- Publication number
- CA2097357A1 CA2097357A1 CA002097357A CA2097357A CA2097357A1 CA 2097357 A1 CA2097357 A1 CA 2097357A1 CA 002097357 A CA002097357 A CA 002097357A CA 2097357 A CA2097357 A CA 2097357A CA 2097357 A1 CA2097357 A1 CA 2097357A1
- Authority
- CA
- Canada
- Prior art keywords
- insoluble
- computer
- layer
- encapsulant
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
A method and process for computer-controlled manufacture of three-dimensional objects involves dispensing a layer of a first material, such as a liquid, insoluble material onto a platform at predetermined locations corresponding to a cross-section of the object, which then hardens. A second medium, preferably water soluble, is then sprayed onto this layer to thereby encapsulate the hardened insoluble media. The uppermost surface of this encapsulant is planarized, if necessary, for example by way of a mill cutter, knife, roller or thermal bar, thus removing a portion of the encapsulant to expose the underlying insoluble material for new pattern deposition. The dispensing of the first and second materials, and the planarization, may be performed in a single pass by an integrated printhead. After the resulting planing residue is removed, another layer of liquid, insoluble medium is dispensed onto the planed surface. These steps are repeated, until the desired three-dimensional object, surrounded by a mold, is completed. At this point, the object is either heated or immersed in a solvent, thereby dissolving the mold and leaving the three-dimensional object intact; alternatively, the second material may remain in place to form a composite structure such as a printed circuit board. A method is also disclosed which converts a CAD
data base representing a solid object into one representing a filled shell, reducing the amount of object material required.
data base representing a solid object into one representing a filled shell, reducing the amount of object material required.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/905,069 US5260009A (en) | 1991-01-31 | 1992-06-24 | System, method, and process for making three-dimensional objects |
US905,069 | 1992-06-24 | ||
US07/923,278 US6175422B1 (en) | 1991-01-31 | 1992-07-31 | Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer data |
US923,278 | 1992-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2097357A1 true CA2097357A1 (en) | 1993-12-25 |
CA2097357C CA2097357C (en) | 2002-05-21 |
Family
ID=27129419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2097357 Expired - Fee Related CA2097357C (en) | 1992-06-24 | 1993-05-31 | Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer data |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2097357C (en) |
-
1993
- 1993-05-31 CA CA 2097357 patent/CA2097357C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2097357C (en) | 2002-05-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |