CAD Tool Path Mapping for Complex Surface Machining
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional CAD/CAM applications face challenges in generating accurate and efficient tool paths for complex shapes, requiring manual input and resulting in increased computational intensity and potential inaccuracies due to reduced resolution.
Innovation Solution
A method and system that allow users to define reference points on a CAD model, generate equi-spaced reference points, connect them to form initial tool paths, and create intermediate paths between these, enabling the processor to generate tool paths with adjustable resolution and reduced manual input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If manual input of limiting parameters is used to reduce computational power for complex shapes, then computational time is reduced, but manufacturing precision deteriorates due to inadvertent errors and approximation
Solution Approach 1:
The system automatically generates equi-spaced reference points and computes tool paths without requiring manual parameter input. The processor autonomously performs the computationally intensive tasks of generating reference points, calculating tool paths, and determining machining parameters, thereby eliminating manual intervention while maintaining high precision.
Solution Approach 2:
The system dynamically adjusts computational parameters such as the number of reference points, tool path resolution, and machining speeds based on the complexity of the workpiece geometry. This allows the system to optimize computational time while maintaining manufacturing precision by adapting parameters to the specific requirements of each complex shape.
2Loss of time
If resolution of tool pathing is reduced to decrease computational intensity, then computational time is reduced, but manufacturing precision deteriorates due to approximation errors
Solution Approach 1:
The system segments the complex surface into multiple regions defined by equi-spaced reference points. Each segment is processed independently with appropriate resolution, allowing high precision where needed while reducing computational load in less critical areas. This segmentation enables the system to maintain overall manufacturing precision while managing computational intensity.
Solution Approach 2:
The system applies different levels of tool path resolution to different regions of the workpiece based on local geometric complexity. Areas with higher curvature or feature density receive finer resolution, while simpler regions use coarser resolution. This local quality approach maintains manufacturing precision in critical areas while reducing overall computational time.
3Ease of operation
If manual input is required for complex shapes, then ease of operation deteriorates due to tedious user input, but device complexity is reduced
Solution Approach 1:
The system automatically generates equi-spaced reference points across the complex surface and computes tool paths without requiring manual parameter input from the user. The processor autonomously handles the generation of reference points, calculation of tool paths, and determination of machining parameters, significantly improving ease of operation while the automated algorithms manage the inherent system complexity.
4Manufacturing precision
If high resolution tool pathing is generated for complex shapes, then manufacturing precision is improved, but computational intensity increases
Solution Approach 1:
The system divides the complex surface into multiple segments using equi-spaced reference points, allowing high-resolution tool path generation to be applied locally to each segment rather than the entire surface. This segmentation enables high manufacturing precision in critical areas while distributing the computational power requirements across multiple smaller calculations.
Solution Approach 2:
The system applies high-resolution tool pathing only to regions where geometric complexity or feature density requires it, while using lower resolution in simpler regions. This local quality approach maintains manufacturing precision where needed while reducing overall computational power consumption.
Data Source
AI summary
A method for generating tool paths across a surface of a computer aided design (CAD) model having a complex shape. The method includes defining at least one reference point on the surface of the CAD model, generating a plurality of substantially equi-spaced reference points across the surface of the CAD model; connecting each of the reference points together with straight lines such that a first tool path is formed by a culmination of the straight lines; generating a second tool path across the surface of the CAD model; and, generating a plurality of intermediate tool paths that extend linearly between the first tool path and second tool path across the surface of a CAD model.