Research of Slicing CAD Models with Pro/TOOLKIT for Integral Stereolithography

2011 ◽  
Vol 321 ◽  
pp. 226-229
Author(s):  
Guang Shen Xu ◽  
Tian You Jing
Keyword(s):  
3D Models ◽  
High Accuracy ◽  
3D Cad ◽  
System A ◽  
Direct Slicing ◽  
Section Profile ◽  
Cad Models ◽  
Slicing Method ◽  
Tower Model ◽  
Image Format

According to the requirements of integral Stereolithography (integral SL) System, a new direct slicing method under Pro/ENGINEER environment is developed. 3D CAD models are sliced with Pro/TOOLKIT in Pro/ENGINEER environment, and section image of 3D models can be obtained and saved as image format. Dynamic masks are produced with the cross-section images which obtained through the slicing method by dynamic pattern generator, and then 3D real prototyping is fabricated conveniently with integral SL System. A 3D tower model is sliced with this method, and the tower prototyping also is fabricated with integral SL System. Compared with the STL format files slicing method, the new slicing method can achieve high accuracy of layer section profile. The direct slicing method provides a new solution for integral SL system to build objects with high accuracy.

Direct Slicing Cad Models with Solidworks for Integral Stereolithography System

2010 ◽  
Vol 148-149 ◽  
pp. 818-821 ◽  
Author(s):  
Guang Shen Xu ◽  
Jian Ping Zhang ◽  
Sheng Luo ◽  
Jing Jin
Keyword(s):  
3D Models ◽  
High Accuracy ◽  
System A ◽  
Direct Slicing ◽  
Section Profile ◽  
Dynamic Graphic ◽  
Cad Models ◽  
Slicing Method ◽  
Image Format ◽  
Repair Models

According to the requirements of integral Stereolithography (integral SL) System, a new direct slicing method with SolidWorks for integral Stereolithography System is developed. Slicing function of SolidWorks is employed to slice CAD models directly, and section image of 3D models can be obtained and saved as image format. Dynamic graphic masks for the integral SL System are created according to the cross-section images that obtained through the slicing method, and then 3D real prototyping can be fabricated conveniently. A 3D cup model is sliced with this method, and the cup prototyping also is built with integral SL System. This experiment shows that direct slicing CAD models with Solidworks can be used for integral SL system, and the method of direct slicing CAD models can improve the efficiency of slicing process. Compared with the STL format files slicing method, the new method does not need to inspect and repair models data, and it can achieve high accuracy of layer section profile. The direct slicing method provides a basis for integral SL system to fabricate objects with high accuracy.

Shape Comparison of 3D Models Based on Features and Parameters

2008 ◽  
Author(s):  
Karthik Viswanathan ◽  
Sagar Chowdhury ◽  
Zahed Siddique
Keyword(s):  
Computer Aided Design ◽  
Product Family ◽  
3D Models ◽  
3D Cad ◽  
Solid Models ◽  
Cad Models ◽  
3D Solid ◽  
Aided Design ◽  
Distinct Features ◽  
Common Platform

Computer-Aided Design (CAD) is used extensively during mechanical product design, which involves creating 3D models of components and then assembling them into modules and systems. Methods and tools to compare components and identify a common platform using these 3D CAD models of components would facilitate faster specification of product family architecture. Hence, there is a need to develop means for comparing component geometry, in order to identify the common and distinct features, determine component commonality, and identify a common platform for the set of components. This paper presents an approach to determine geometric commonality between components from their 3D solid models. The approach consists of performing a pair-wise comparison between components. To measure commonality for a pair of components, first all feature-pair’s dimensions and positions are measured, which then combined to give the overall component-pair commonality.

Enhancing Model Reuse Through 3D Annotations: A Theoretical Proposal for an Annotation-Centered Design Intent and Design Rationale Communication

2013 ◽  
Author(s):  
Jorge Dorribo-Camba ◽  
Gerardo Alducin-Quintero ◽  
Pascual Perona ◽  
Manuel Contero
Keyword(s):  
3D Models ◽  
Design Rationale ◽  
Design Intent ◽  
Data Annotation ◽  
3D Cad ◽  
Cad Models ◽  
The Impact ◽  
Theoretical Proposal

The long term goals of this research are to study the effectiveness of CAD 3D annotation techniques to support the explicit communication of design intent and rationale, and to analyze the impact of the annotations in the alteration and reutilization of 3D models in a product design context. Towards these goals, we are initially examining the formal annotation practices defined by model-based standards such as ASME Y14.41-2012 and ISO 16792:2006, and their implementation in current CAD systems. This paper presents a prototype implementation of a module to automatically extract textual information from annotated 3D CAD models. Automated extraction of data annotation can be used to analyze both the content and the quality of the annotations with the purpose of determining what makes annotations effective and ultimately communicating design intent. The architecture of a system designed to manage and manipulate this information is also described and analyzed.

An Agent Based Framework to Automatically Generate 3D CAD Models of Customer Specified Products

2003 ◽  
Author(s):  
Zahed Siddique ◽  
Karunakar Reddy Boddu
Keyword(s):  
Mass Customization ◽  
3D Model ◽  
Product Information ◽  
3D Models ◽  
The Internet ◽  
Agent Based ◽  
User Input ◽  
3D Cad ◽  
Design And Manufacturing ◽  
Cad Models

To survive in today’s volatile market, companies are striving to deliver greater quality, more customization, faster response, more innovative designs and lower prices. The new shift in the current market has introduced the concept of mass customization. One of the aspects of mass customization is to provide customers with products that are manufactured to their needs and requirements. To provide such a support requires better integration of customer with different stages of design and manufacturing. Expansion of the Internet provides an opportunity for such an integration, which will need to link design and manufacturing of the company with the customer. In current approaches, customer usually specifies the options and gets the price or simple pictures of the object. In this paper a system is presented, where customer options and size parameters are gathered using the Internet and is used to automatically generate 3D CAD model of the product and then display the 3D model to the customer for feedback. Development of a framework to generate 3D models from user input will require maintaining explicit correspondence among various types of product information from a module perspective. The Internet based system presented in this paper uses templates to automatically generate 3D CAD models of components, assemble them into products and then export VRML files that are displayed to the customer.

Intuitive 3D Computer-Aided Design (CAD) System With Multimodal Interfaces

2013 ◽  
Author(s):  
V. G. Nanjundaswamy ◽  
Amit Kulkarni ◽  
Zhuo Chen ◽  
Prakhar Jaiswal ◽  
Sree Shankar S. ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Brain Computer Interface ◽  
3D Models ◽  
Multimodal Interfaces ◽  
Computer Interface ◽  
Cad Modeling ◽  
3D Cad ◽  
Cad System ◽  
Cad Models ◽  
Aided Design

The existing interfaces for 3D CAD modeling softwares use 2D subspace inputs such as x and y axes of mouse to create 3D models. These existing interfaces are inherently modal because one needs to switch between subspaces, and disconnects the input space from modeling space. This makes existing interfaces tedious, complex, non-intuitive and difficult to learn. In this paper, a multi-sensory, interactive, and intuitive 3D CAD modeling interface is presented to address these shortcomings. Three different modalities (gestures, brain-computer interface, and speech) have been used for creating interactive and intuitive 3D CAD modeling interface. DepthSense® camera from SoftKinetic is used to recognize gestures, EEG Neuro-headset from Emotiv® is used for acquiring, and processing neuro-signals and CMU Sphinx is used for recognizing and processing speech. Multiple CAD models created by several users using the proposed multi-modal interface are presented. In conclusion, the proposed system is easier to learn and use as compared to the already existing systems.

Towards Identifying the Elements of a Minimum Information Model for Use in a Model-Based Definition

2017 ◽  
Author(s):  
Alexander McDermott Miller ◽  
Nathan W. Hartman ◽  
Thomas Hedberg ◽  
Allison Barnard Feeney ◽  
Jesse Zahner
Keyword(s):  
Research Study ◽  
Product Information ◽  
3D Models ◽  
Information Model ◽  
Manufacturing Companies ◽  
Minimum Information ◽  
3D Cad ◽  
Model Based ◽  
Cad Models ◽  
Industry Sectors

The Model-Based Enterprise (MBE) paradigm is being adopted by manufacturing companies in a variety of industries. Companies benefit from enhanced visualization, documentation, and communication capabilities when 3D annotated product definitions, or Model-Based Definitions (MBD) replace two-dimensional drawings throughout an enterprise. It is critical that product information, much of which is defined implicitly in drawings, is not lost in this transition. This presents a challenge to authors and translators of 3D models used through the product lifecycle. They must understand the semantics of the product information typically presented by a drawing then explicitly include this information, in a computer-interpretable form, in the MBD. The research study described in this paper seeks to discover what is the minimum set of required information to carry out all the tasks in a given workflow of a model-based enterprise. A survey was conducted across various industry sectors to identify the foundational elements of this Minimum Information Model (MIM) in selected workflows. This study identified the information used within the specific workflows, the capabilities of 3D CAD models to carry this information, and the implications for doing so.

scholarly journals Comparing Virtual Reality and Desktop Interface for Reviewing 3D CAD Models

2019 ◽  
Vol 1 (1) ◽  
pp. 1923-1932 ◽  
Author(s):  
Nikola Horvat ◽  
Stanko Škec ◽  
Tomislav Martinec ◽  
Fanika Lukačević ◽  
Marija Majda Perišić
Keyword(s):  
Virtual Reality ◽  
Spatial Perception ◽  
3D Models ◽  
Evaluation Study ◽  
Sensory Cues ◽  
Interface Elements ◽  
3D Cad ◽  
Cad Models ◽  
Model Size ◽  
Model Review

AbstractUse of virtual reality (VR) is considered beneficial for reviewing 3D models throughout product design. However, research on its usability in the design field is still explorative, and previous studies are often contradictory regarding the usability of VR for 3D model review. This paper argues that the usability of VR should be assessed by analysing human factors such as spatial perception and taking into consideration the complexity of the reviewed product. Hence, a comparative evaluation study has been conducted to assess spatial perception in desktop interface-based and VR-based review of 3D models of products with different levels of complexity. The results show that participants in VR more could perceive the fit of user interface elements, and estimation of the model dimensions had a lower relative error than in desktop interface. It has been found that various sensory cues are used to perceive the model size and that the employed sensory cues depend on the level of complexity. Finally, it is proposed that differences between a desktop interface and VR for reviewing models are more evident when reviewing models of higher complexity levels.

scholarly journals Curating Architectural 3D CAD Models

2009 ◽  
Vol 4 (1) ◽  
pp. 98-106 ◽  
Author(s):  
MacKenzie Smith
Keyword(s):  
Computer Games ◽  
3D Models ◽  
Digital Archives ◽  
3D Cad ◽  
Related Data ◽  
Advantages And Disadvantages ◽  
Engineering Designs ◽  
Cad Models ◽  
Increasing Demand ◽  
Physical Phenomena

Increasing demand to manage and preserve 3-dimensional models for a variety of physical phenomena (e.g., building and engineering designs, computer games, or scientific visualizations) is creating new challenges for digital archives. Preserving 3D models requires identifying technical formats for the models that can be maintained over time, and the available formats offer different advantages and disadvantages depending on the intended future uses of the models. Additionally, the metadata required to manage 3D models is not yet standardized, and getting intellectual proposal rights for digital models is uncharted territory.  The FACADE Project at MIT is investigating these challenges in the architecture, engineering and construction (AEC) industry and has developed recommendations and systems to support digital archives in dealing with digital 3D models and related data. These results can also be generalized to other domains doing 3D modeling.

scholarly journals Automatized Evaluation of Students’ CAD Models

2021 ◽  
Vol 11 (4) ◽  
pp. 145
Author(s):  
Nenad Bojcetic ◽  
Filip Valjak ◽  
Dragan Zezelj ◽  
Tomislav Martinec
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
Computer Application ◽  
Test Cases ◽  
Cad Model ◽  
Computer Solution ◽  
3D Cad ◽  
Computer Aided ◽  
Cad Models ◽  
Aided Design

The article describes an attempt to address the automatized evaluation of student three-dimensional (3D) computer-aided design (CAD) models. The driving idea was conceptualized under the restraints of the COVID pandemic, driven by the problem of evaluating a large number of student 3D CAD models. The described computer solution can be implemented using any CAD computer application that supports customization. Test cases showed that the proposed solution was valid and could be used to evaluate many students’ 3D CAD models. The computer solution can also be used to help students to better understand how to create a 3D CAD model, thereby complying with the requirements of particular teachers.

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