From 2D computer-aided draughting to 2D and 3D computer-aided design

The potential applications of computer-aided design/computer-aided manufacturing (CAD/CAM) and intraoral scanning exceed the delivery of standard prosthodontic interventions. The aim of this study was to clinically present a developed assessment technique, that relies on the use of sequential intraoral scanning, three-dimensional superimposition, and 2D and 3D deviation analyses based on a standardised protocol, as an auxiliary tool in monitoring dimensional changes of residual ridge post-extraction with a follow-up period of four months.

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Method of Patternmaking in Fashion Institution and Fashion Industry

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.b3333.129219 ◽

2019 ◽

Vol 9 (2) ◽

pp. 5400-5405

Keyword(s):

Higher Education ◽

Computer Aided Design ◽

Higher Education Institutions ◽

Fashion Industry ◽

Skilled Workers ◽

Computer Aided ◽

Aided Design ◽

2D And 3D ◽

3D Applications ◽

Flat Pattern

There are many approaches and procedures that can be used to create patternmaking in higher education institutions and the fashion industry. Literature demonstrates that there are several methods that essentially generate patterns such as draping, flat patterns and Computer Aided Design (CAD) that include 2D and 3D applications. Many Malaysian institutions are studying patternmaking using flat pattern and draping [4], which is different from the fashion industry using CAD software. In order to produce skilled workers in the field of patternmaking, they must learn and apply the pattern-making techniques and methods well so that they do not have any problems when it comes to working in the industry or the education sector. This study describes the basic method, process and CAD software that can be used in the field of patternmaking.

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Automated Methods in Computer Aided Design

Volume 1: 25th Design Automation Conference ◽

10.1115/detc99/dac-8561 ◽

1999 ◽

Author(s):

K. Abdel-Malek ◽

H.-L. Zou ◽

J.-Y. Wang ◽

S. Othman

Keyword(s):

Variational Method ◽

Concurrent Engineering ◽

Computer Aided Design ◽

3D Models ◽

Design Change ◽

Mechanical Parts ◽

Computer Aided ◽

Aided Design ◽

2D And 3D ◽

Automated Methods

Abstract A numerical variational method is herein introduced for the automatic redesign of mechanical parts subject to a design change. This method is demonstrated to the design of mechanical parts in the context of concurrent engineering of 3D parts. Relations between dimensions in a mechanical part as dictated by a designer are modeled using mechanisms and their kinematic relations. Variational cut-joint constraints are introduced, kinematic joints in the formulation are combined, and a Jacobian is determined. Constraint violations are then compensated to compute an assembled mechanism, hence redesigning the part. It is shown that this formulation is broadly applicable to 2D and 3D models. The method and algorithm are illustrated through examples.

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