Compensated 3D Print Geometry for Sharp-Angle Distortion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Additive manufacturing processes often result in distortions during the formation of components, leading to final models that do not accurately represent the original design, especially when printing complex geometries with sharp angles.
Innovation Solution
A method involving geometric compensation, where a compensation model is created by analyzing the original model for potential distortions and modifying it to account for printer-specific issues, allowing the final printed component to more closely resemble the original design by incorporating negative print regions that mitigate distortion-causing geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additive manufacturing is used to form components with complex geometries and sharp angles, then manufacturing versatility and design freedom are improved, but manufacturing precision deteriorates due to distortions during the forming process
Solution Approach 1:
The patent applies preliminary action by modifying the digital model before the additive manufacturing process. Compensation features are added to the CAD model in advance to counteract known distortions that will occur during printing. This pre-compensation approach allows the final printed part to achieve the desired geometric accuracy while maintaining the ability to print complex geometries with sharp angles.
2Ease of manufacture
If standard additive manufacturing processes are used without compensation, then ease of manufacture is improved, but manufacturing precision deteriorates due to printer-induced distortions
Solution Approach 1:
The patent introduces an intermediary element - a compensation model or software layer - that sits between the original design and the manufacturing process. This intermediary automatically calculates and applies distortion compensation to the model, maintaining process simplicity while improving dimensional accuracy. The compensation can be applied through automated software tools that work with standard additive manufacturing workflows.
3Manufacturing precision
If geometric compensation is applied to create a compensated model, then manufacturing precision is improved, but device complexity increases due to additional software and processing steps
Solution Approach 1:
The patent applies self-service by enabling the additive manufacturing system to automatically perform geometric compensation without requiring external intervention. The compensation software analyzes the printer's characteristics and automatically adjusts the model, allowing the system to self-correct for its own distortions. This automation reduces the need for manual intervention and specialized expertise while maintaining high geometric accuracy.
Data Source
AI summary
A method of using additive manufacturing to form or print a component based on an original model of a component, where the geometry of the original model is compensated to form a compensated model. The compensated model can be used to form or print the component. The printed component as a final model can then be compared to the original model.