3D Fabrication Quality Output Using In-Process Sensor Data

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Solution Overview

Problem

Current three-dimensional fabrication systems face challenges in internal inspection and ensuring internal quality of fabricated objects, as external appearance does not reveal internal defects, leading to potential quality failures and wasted time and materials during the fabrication process.

Innovation Solution

A data output apparatus and method that includes circuitry to acquire and output quality information for three-dimensional objects by recording sensor data during fabrication, allowing for detailed analysis of quality defects and preventing further errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If three-dimensional fabrication is performed without internal monitoring, then fabrication speed is maintained, but internal quality cannot be ensured and defects remain undetected

Engineering Contradiction:
Improveinternal qualityVSAvoidmonitoring system
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent introduces sensor data as an intermediary element that mediates between the fabrication process and quality assessment. Sensors are embedded within the fabrication apparatus to capture internal state information (temperature, humidity, material properties) during the fabrication process, providing indirect but reliable indicators of internal quality without requiring complex post-fabrication inspection equipment.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements feedback mechanisms by continuously monitoring sensor data during fabrication and using this information to assess internal quality in real-time. The quality information generation unit processes sensor data to provide feedback on fabrication quality, enabling dynamic adjustment of parameters to maintain internal quality standards while preserving fabrication speed.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If sensor data is collected during fabrication, then quality assessment accuracy is improved, but data processing complexity increases

Engineering Contradiction:
Improvequality assessment accuracyVSAvoiddata processing system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts only the essential quality-related features from the collected sensor data using the quality information generation unit. Instead of processing all raw sensor data, the system identifies and extracts key parameters (temperature profiles, humidity variations, material deposition rates) that directly correlate with internal quality, reducing processing complexity while maintaining assessment accuracy.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system creates simplified representations (copies) of the complex sensor data by generating quality information metrics that capture the essential quality characteristics. Rather than storing and analyzing all raw sensor readings, the system produces condensed quality reports that preserve the critical information needed for quality assessment.

Inventive Principle:
Principle #26Copying

3Loss of substance

If quality information is generated during fabrication, then waste is reduced by identifying defects early, but computation time is consumed

Engineering Contradiction:
Improvematerial wasteVSAvoidcomputation time
Core Design Contradiction:
Loss of substanceVSLoss of time

Solution Approach 1:

The system performs preliminary quality assessment actions during the fabrication process itself by continuously analyzing sensor data. The quality information generation unit evaluates quality metrics in real-time, enabling early detection of potential defects before they result in complete fabrication failures, thus preventing material waste without requiring separate post-processing inspection steps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements partial quality monitoring by focusing computational resources on the most critical quality parameters and high-risk fabrication stages. Rather than performing exhaustive analysis on all data at all times, the system applies intensified monitoring only where and when quality issues are most likely to occur, reducing overall computation time while maintaining effective waste prevention.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS11712853B2Three-dimensional apparatus and method outputting quality information of fabricated three-dimensional objects
Publication Date: 2023.08.01 RICOH CO LTD
  • US11712853B2 patent drawing
  • US11712853B2 patent drawing
  • US11712853B2 patent drawing

AI summary

A data output apparatus includes first circuitry configured to acquire predetermined information used for a three-dimensional fabrication; and second circuitry configured to output quality information for a three-dimensional object fabricated during the three-dimensional fabrication based on the predetermined information.