CAD Intersecting Body Trimming With Offset Gap Control
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Solution Overview
Problem
Current CAD tools are inefficient in removing unwanted volume from intersecting bodies in geometric models, leading to cumbersome processes and inconsistent intersections, especially when multiple bodies are involved, and fail to maintain a minimum gap between layer faces.
Innovation Solution
A method and system for trimming intersecting bodies in a CAD environment that determines intersecting bodies, computes their volumes to be trimmed, sets a trim offset value based on a desired gap, and recomputes volumes using artificial intelligence algorithms to generate a modified geometric model while maintaining the specified gap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual trimming of unwanted volume from intersecting bodies is performed using known CAD tools, then the geometric model can be modified, but the process becomes tedious and cumbersome
Solution Approach 1:
The system enables automatic trimming of unwanted volume from intersecting bodies by detecting intersections and performing trim operations without requiring manual user intervention. The CAD system self-identifies intersecting bodies and automatically executes the trimming process, eliminating the tedious manual operations previously required.
Solution Approach 2:
The system performs preliminary detection of intersecting bodies and pre-calculates the unwanted volume to be trimmed before the user initiates the trim operation. This preliminary analysis prepares the trimming information in advance, so that when the trim operation is executed, it completes quickly without requiring time-consuming manual steps.
2Manufacturing precision
If modifications are made to remove unwanted volume from intersecting bodies, then the geometric model is updated, but inconsistent intersections occur resulting in rework
Solution Approach 1:
The system continuously monitors and detects intersections between bodies, providing feedback information about intersecting regions. This feedback mechanism ensures that trim operations are based on accurate, up-to-date intersection data, preventing inconsistent intersections and the rework that would otherwise be necessary to correct errors.
Solution Approach 2:
The system performs preliminary detection and analysis of all intersecting bodies before executing trim operations. By identifying all intersections in advance and calculating the precise unwanted volume to be removed, the system ensures that the trimming is done correctly the first time, avoiding inconsistent intersections and subsequent rework.
3Manufacturing precision
If trimming is performed on intersecting bodies, then unwanted volume is removed, but maintaining a minimum gap between layer faces becomes challenging
Solution Approach 1:
The system introduces a trim offset value as a controllable parameter that directly influences the trimming operation. By adjusting this offset parameter, the user can precisely control the minimum gap to be maintained between layer faces of intersecting bodies. The system automatically incorporates this parameter into the trim calculation, making gap control straightforward rather than difficult.
Solution Approach 2:
The trim offset value serves as an intermediary parameter between the user's gap requirement and the actual trimming operation. Instead of requiring direct manual manipulation to maintain gaps, the user simply specifies the desired minimum gap through the offset parameter, and the system mediates this requirement into the appropriate trim volume calculation, automatically maintaining the specified gap.
4Adaptability or versatility
If known CAD tools are used for trimming, then basic trim operations can be performed, but support for trimming when more than two bodies are intersecting is not provided
Solution Approach 1:
The system is designed with universal capability to handle intersecting bodies of any number (two or more). The intersection detection and trimming mechanism works uniformly whether two bodies intersect or multiple bodies intersect, providing a single versatile solution that adapts to different scenarios without requiring separate tools or complex special-case handling.
Data Source
AI summary
A method and system for trimming intersecting bodies of a geometric model in a computer-aided design environment is disclosed. In one embodiment, a method includes determining a plurality of bodies of the geometric model intersecting with each other. The method includes computing volume of one or more intersecting bodies in the geometric model to be trimmed from the geometric model. Also, the method includes determining a trim offset value for at least one intersecting body in the geometric model and recomputing the volume of the at least one intersecting body in the geometric model which is to be trimmed from the geometric model based on the trim offset value. Moreover, the method includes generating a modified geometric model by performing a trim operation on the volume of the one or more intersecting bodies of the geometric model.