WO1990015376A3 - Automated fabrication of objects of unique geometry - Google Patents

Automated fabrication of objects of unique geometry Download PDF

Info

Publication number
WO1990015376A3
WO1990015376A3 PCT/US1990/003209 US9003209W WO9015376A3 WO 1990015376 A3 WO1990015376 A3 WO 1990015376A3 US 9003209 W US9003209 W US 9003209W WO 9015376 A3 WO9015376 A3 WO 9015376A3
Authority
WO
WIPO (PCT)
Prior art keywords
computer
reproduction
objects
geometry
present
Prior art date
Application number
PCT/US1990/003209
Other languages
French (fr)
Other versions
WO1990015376A2 (en
Inventor
Arthur G Erdman
Elizabeth D Rekow
Donald R Riley
Barney E Klamecki
Yang Zhu
Jeong-Ho Ahn
Original Assignee
Univ Minnesota
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ Minnesota filed Critical Univ Minnesota
Priority to EP90909548A priority Critical patent/EP0476032B1/en
Priority to DE69032221T priority patent/DE69032221D1/en
Publication of WO1990015376A2 publication Critical patent/WO1990015376A2/en
Publication of WO1990015376A3 publication Critical patent/WO1990015376A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0004—Computer-assisted sizing or machining of dental prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/42—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
    • G05B19/4202—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model
    • G05B19/4207—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model in which a model is traced or scanned and corresponding data recorded
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0093—Workpiece support

Abstract

The present invention provides a method and apparatus for the automated reproduction of three dimensional objects of complex and unique geometry. A computer acquires data describing an object and its surroundings, constructs a computer-based three dimensional model of the object from that data, superimposes an ideal geometry on the computer-based model, alters the ideal geometry to fit the form and function required of the reproduction, and then guides a milling machine in the fabrication of the reproduction. In contrast to the prior art, the present invention does not require human intervention in the reproduction process. The present invention provides two preferred embodiments for the automated high precision reproduction of objects of complex and unique geometry. Both embodiments can machine reproductions solely from generic forms stored in the computer, thus eliminating the need for scanning. Alternatively, the reproductions may be machined solely from scanned data, without resort to generic forms stored in the computer.
PCT/US1990/003209 1989-06-09 1990-06-06 Automated fabrication of objects of unique geometry WO1990015376A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90909548A EP0476032B1 (en) 1989-06-09 1990-06-06 Automated fabrication of objects of unique geometry
DE69032221T DE69032221D1 (en) 1989-06-09 1990-06-06 AUTOMATED PROCESSING OF OBJECTS WITH UNIQUE GEOMETRY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US365,140 1989-06-09
US07/365,140 US5128870A (en) 1989-06-09 1989-06-09 Automated high-precision fabrication of objects of complex and unique geometry

Publications (2)

Publication Number Publication Date
WO1990015376A2 WO1990015376A2 (en) 1990-12-13
WO1990015376A3 true WO1990015376A3 (en) 1991-02-07

Family

ID=23437635

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/003209 WO1990015376A2 (en) 1989-06-09 1990-06-06 Automated fabrication of objects of unique geometry

Country Status (8)

Country Link
US (1) US5128870A (en)
EP (1) EP0476032B1 (en)
JP (1) JPH04506037A (en)
AT (1) ATE164957T1 (en)
AU (1) AU5836490A (en)
CA (1) CA2058624A1 (en)
DE (1) DE69032221D1 (en)
WO (1) WO1990015376A2 (en)

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US5128870A (en) 1992-07-07
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