3D Printing Tool Path Regeneration via Output Data Feedback

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Solution Overview

Problem

Current 3D printing technologies require users to stop the output process, discard materials, and return to the slicing step to correct errors, leading to increased production time and cost due to the inability to regenerate tool paths based on output data feedback without regenerating the job file.

Innovation Solution

A system that includes a slicing unit and an output unit with an output data analysis module to monitor and modify tool paths in real-time using output data feedback, allowing for error correction without regenerating the job file, by adjusting process parameters and tool paths based on collected data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the user stops the output process to correct errors and returns to the slicing step to regenerate the job file, then the output error can be corrected, but the production time and cost increase significantly

Engineering Contradiction:
Improveoutput reliabilityVSAvoidproduction time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements a feedback mechanism where output data is collected during the 3D printing process and fed back to the output data analysis module. This module analyzes the feedback data to detect output errors or failures in real-time, enabling the system to respond to issues as they occur rather than requiring manual intervention after completion of the entire printing process.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system enables self-service by automatically detecting output errors through the output data analysis module and regenerating tool paths without requiring user intervention to return to the slicing step. The output unit can autonomously adjust and continue printing based on the regenerated tool paths, eliminating the need for manual stopping and restarting of the printing process.

Inventive Principle:
Principle #25Self-service

2Reliability

If the user stops the output process to correct errors and returns to the slicing step to regenerate the job file, then the output error can be corrected, but the materials used for outputting must be discarded

Engineering Contradiction:
Improveoutput reliabilityVSAvoidmaterial waste
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The feedback mechanism allows the system to detect output errors during the printing process and generate corrected tool paths for the remaining layers. This enables partial correction without discarding the already-printed portions, thereby reducing material waste compared to the conventional approach of discarding all materials when an error occurs.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Instead of discarding all materials when an error is detected, the system recovers by regenerating only the affected tool paths for the remaining layers. The already-printed portions are preserved, and only the necessary corrections are applied to the remaining printing operations, minimizing material loss.

Inventive Principle:
Principle #34Discarding and recovering

3Reliability

If the system monitors output data and regenerates tool paths in real-time, then output reliability improves, but the system complexity increases

Engineering Contradiction:
Improveoutput reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The output data analysis module serves multiple functions: it collects output data from the output unit, analyzes the data to detect errors, determines whether output failures are predicted, and triggers tool path regeneration. This multi-functionality consolidates what could be separate complex systems into a single integrated module, managing complexity while maintaining reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The output data analysis module acts as an intermediary between the output unit and the tool path generation process. It receives output data, processes the information, and generates corrected tool paths without requiring direct intervention in the slicing step. This intermediary role simplifies the overall system architecture by providing a dedicated interface for error detection and correction.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20240100779A1Method for regenerating tool path on basis of output data feedback in order to improve 3D printing output reliability
Publication Date: 2024.03.28 KOREA ELECTRONICS TECH INST
  • US20240100779A1 patent drawing
  • US20240100779A1 patent drawing
  • US20240100779A1 patent drawing

AI summary

Provided is a method for regenerating a tool path on the basis of output data feedback in order to improve 3D printing output reliability. A tool path regeneration system according to an embodiment of the present invention comprises: a slicing unit for configuring a process parameter for 3D printing and performing slicing for 3D model data on the basis of the configured process parameter to generate a job file; and an output unit for performing 3D printing on the basis of the generated job file and collecting output data that is output while the 3D printing is performed, wherein the slicing unit comprises an output data analysis module for performing monitoring on the basis of the output data received from the output unit and determining whether to correct the process parameter on the basis of the result of the monitoring. Thus, when a user recognizes or predicts an output error and output failure in an output step, the user can regenerate an output error alarm or a tool path on the basis of output data feedback generated in the output step without returning to a slicing step to regenerate a job file, whereby output reliability can be improved and a production time and a production cost can be reduced.