Parametric 3D Part Modeling for Complex Geometric Features
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing complexity of parts in additive manufacturing (AM) leads to prohibitively large CAD file sizes, causing processing bottlenecks, long printing delays, and print errors, which require significant redesign efforts.
Innovation Solution
A parametric-based approach is introduced, where complex geometric features (CGFs) are modeled within determined volumes using parametric modeling based on 3-D printing parameters, allowing for smaller CAD files and faster printing times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If complex geometric features are modeled using traditional 3-D CAD modeling, then geometric complexity is improved, but file size increases prohibitively large
Solution Approach 1:
The patent segments the CAD model into two distinct volumes: a first volume modeled using traditional 3-D CAD techniques and a second volume containing complex geometric features modeled using parametric modeling based on 3-D printing parameters. This segmentation allows the complex features to be represented more efficiently, reducing overall file size while maintaining geometric complexity.
Solution Approach 2:
The patent changes the modeling parameters for the second volume from traditional 3-D CAD parameters to parametric modeling parameters specifically optimized for 3-D printing. This parameter change enables the representation of complex geometric features with fewer data points, significantly reducing file size while preserving the ability to model intricate geometries.
2Device complexity
If complex geometric features are modeled using traditional 3-D CAD modeling, then geometric complexity is improved, but processing time increases
Solution Approach 1:
By segmenting the model into two volumes with different modeling approaches, the patent enables the second volume with complex features to be processed more efficiently using parametric modeling, thereby reducing overall processing time while maintaining geometric complexity.
Solution Approach 2:
The parameter change from traditional CAD modeling to parametric modeling for the second volume reduces computational complexity, leading to faster processing times while still enabling the representation of complex geometric features.
3Device complexity
If complex geometric features are modeled using traditional 3-D CAD modeling, then geometric complexity is improved, but error rate increases
Solution Approach 1:
The segmentation of the model allows the second volume with complex features to be handled using parametric modeling specifically designed for 3-D printing, which reduces the likelihood of print errors and failures while maintaining the ability to model complex geometries.
Solution Approach 2:
By changing to parametric modeling parameters optimized for 3-D printing, the patent reduces modeling errors and print failures that commonly occur with traditional CAD approaches when dealing with complex geometric features.
Data Source
AI summary
Techniques for modeling a part with a complex geometric feature (CGF) for use with a three-dimension (3-D) printer are disclosed. In one aspect of the disclosure, a method of modeling a part for 3-D printing includes determining a first volume of the part. The first volume may be modeled using a 3-D computer-aided design (CAD) model. A second volume of the part is determined. The CGF may be modeled within the second volume using parametric modeling based on 3-D printing parameters.