3D Printing Compensation for Merged Geometric Data
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Solution Overview
Problem
In additive manufacturing, merging 3D geometric information of multiple parts into a single logical part in a 3D object model file can lead to less accurate processing and dimensional variations during printing, as compensation factors are applied uniformly rather than individually to each part.
Innovation Solution
A method to extract and process separate 3D geometric information for each physical part from a merged 3D object model file, allowing for individual processing and compensation for dimensional variations, thereby improving the accuracy of 3D printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple physical 3D parts are merged into a single logical 3D part in the 3D object model file, then the file structure is simplified and easier to process, but the manufacturing precision deteriorates because compensation factors are applied uniformly rather than individually to each part
Solution Approach 1:
The patent divides the merged 3D geometric information into separate, identifiable segments for each physical part. By segmenting the unified 3D model into distinct parts with individual identifiers, the system can apply different compensation factors to each part while maintaining a manageable file structure. This segmentation resolves the contradiction by enabling individual processing without requiring complete separation of parts.
Solution Approach 2:
The patent applies local quality by assigning unique compensation factors to specific regions (parts) within the 3D model. Instead of applying a uniform compensation factor to the entire merged model, the system identifies individual parts and applies part-specific compensation factors to their respective regions. This allows different parts to receive tailored processing parameters based on their individual dimensional requirements.
2Device complexity
If a single compensation factor is applied to the merged 3D part, then the processing complexity is reduced, but the manufacturing precision deteriorates due to dimensional variations in different parts
Solution Approach 1:
The patent segments the compensation process into individual part-level operations. By identifying and separating the geometric information of each physical part within the merged model, the system can apply compensation factors individually to each segment. This segmentation increases processing complexity only slightly while significantly improving dimensional consistency across different parts.
Solution Approach 2:
The patent changes the compensation parameter from a single uniform value to multiple part-specific values. The system determines individual compensation factors based on the specific dimensional characteristics of each part, allowing for optimized compensation parameters that account for variations in part geometry, material properties, and printing conditions.
3Device complexity
If 3D geometric information is merged without separation identifiers, then the data structure is simplified, but the measurement precision deteriorates as individual part dimensions cannot be accurately determined
Solution Approach 1:
The patent introduces separation identifiers or segmentation markers within the 3D geometric data structure to distinguish individual parts. These identifiers allow the system to parse and identify separate parts within the merged model, enabling accurate measurement of individual part dimensions while maintaining a relatively simple overall data structure. The segmentation approach balances structural simplicity with measurement precision.
Solution Approach 2:
The patent introduces intermediate separation identifiers or metadata as mediators between the merged 3D geometric data and the individual part information. These intermediaries provide the necessary separation information without fundamentally complicating the base data structure, allowing for accurate individual part measurement while maintaining data structure simplicity.
Data Source
AI summary
A method of processing merged 3D geometric information in a 3D printing system is described that receives a 3D object model file representing at least two physical 3D parts to be printed, wherein the 3D object model file comprises 3D geometric information for the at least two physical 3D parts, wherein the 3D geometric information is encoded as at least one logical 3D part, wherein at least one of the at least one logical 3D part comprises merged 3D geometric information for at least a subset of the at least two physical 3D parts. From the 3D object model file, a separate set of 3D geometric information for each of the at least two physical 3D parts is extracted and each separate set of 3D geometric information is processed individually before printing the physical 3D parts.