Editable 3D Model Dimension Association
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current CAD systems fail to automatically associate dimension information with 3D models created from 2D geometry, resulting in 'dumb' solid models that require additional steps for dimensional values and editing, and lose associativity when transferring between systems.
Innovation Solution
A method and CAD system that automatically associate editable dimensions with 3D models by receiving 2D or 3D CAD data, mapping dimension information, and storing it in the CAD system, allowing for editing to produce corresponding changes in the 3D model, and enabling transfer of fully editable solid models between systems with associative drawings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If 3D models are created from 2D geometry in current CAD systems, then the models can be generated, but the dimension information is not automatically associated, resulting in 'dumb' solid models that require additional steps for editing
Solution Approach 1:
The system performs preliminary action by automatically extracting and associating dimension information from 2D geometry with the corresponding 3D model features during the creation process. This preliminary association of dimensional data with geometric features eliminates the need for subsequent manual dimension assignment steps, directly resolving the contradiction between automation extent and operational ease.
2Ease of operation
If dimension information is manually added to 3D models, then the models become editable, but the process requires additional steps and reduces productivity
Solution Approach 1:
The system implements self-service by automatically extracting dimension information from the source 2D geometry and autonomously associating it with the appropriate 3D model features. This self-service capability eliminates the need for manual dimension addition steps, thereby maintaining editability while significantly improving productivity by removing unnecessary operational steps.
3Adaptability or versatility
If 3D models are transferred between CAD systems, then interoperability is achieved, but associativity is lost and dimension information is not preserved
Solution Approach 1:
The system uses an intermediary approach by creating a structured data representation that captures both geometric and dimensional information in a standardized format. This intermediary data structure serves as a bridge between different CAD systems, enabling transfer of 3D models while preserving associativity and dimension information through the standardized representation layer.
4Ease of manufacture
If 2D CAD data is converted to 3D models, then the models can be created, but the dimension information and design intent are not automatically preserved
Solution Approach 1:
The system applies the extraction principle by automatically extracting dimension information and design intent from the source 2D CAD data. The extraction process captures critical dimensional attributes and associates them with corresponding 3D model features, preventing information loss during the conversion process and maintaining the integrity of design intent in the resulting 3D models.
Data Source
AI summary
A method and related CAD system and computer readable medium for creating a dimensioned object model in a CAD system, including automatically associating editable dimensions with an object model in the CAD system. The method includes receiving 2D CAD data, the 2D CAD data including dimension information, and creating a 3D model corresponding to the 2D CAD data. The method also includes associating the dimension information with features of the 3D model and storing the 3D model and associated dimension information in the CAD system. The dimension information can thereafter be edited to automatically produce corresponding changes in the 3D model. Other methods are also described.