Resin Support Attachment Structure for Precise Module Alignment

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Solution Overview

Problem

Existing additive manufacturing systems face challenges in aligning and maintaining the alignment of various modules, leading to operational faults and inefficiencies during the layer-by-layer construction of three-dimensional components.

Innovation Solution

The implementation of an attachment structure that aligns and supports the feed, take-up, and build modules through alignment pads and frames, ensuring precise positioning and tension control of the resin support, thereby minimizing misalignment and operational issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If modules are provided as separate components for additive manufacturing, then the system becomes more modular and easier to maintain, but alignment precision between modules deteriorates

Engineering Contradiction:
ImprovemodularityVSAvoidalignment precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

Alignment pads serve as intermediary elements between separate modules (build module, feed module, take-up module). These pads provide standardized attachment surfaces that ensure precise relative positioning when modules are assembled, resolving the alignment precision issue while maintaining modularity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The attachment structure with alignment pads serves multiple functions: it provides mechanical support for modules, ensures precise alignment between modules, and maintains consistent spacing. This multi-functional design allows separate modules to be assembled with high precision without requiring custom-fit connections

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

2Area of stationary object

If modules are closely positioned for efficient space utilization, then the apparatus footprint is reduced, but alignment stability deteriorates

Engineering Contradiction:
Improveapparatus footprintVSAvoidalignment stability
Core Design Contradiction:
Area of stationary objectVSStability of the object's composition

Solution Approach 1:

Alignment pads are pre-configured with specific geometric features and positioning tolerances before module assembly. This preliminary preparation ensures that when modules are installed, they automatically achieve stable alignment even in compact configurations, preventing alignment drift during operation

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If rigid attachment structures are used to maintain module alignment, then alignment precision is improved, but adaptability for different configurations deteriorates

Engineering Contradiction:
Improvealignment precisionVSAvoidconfiguration flexibility
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The attachment structure uses adjustable mounting mechanisms that allow the rigid alignment pads to be positioned and secured at different locations. This enables the system to maintain precise alignment through rigid connections while adapting to different module configurations and sizes

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution enhances the alignment and operational stability of the modules, reducing faults and improving the quality and efficiency of the additive manufacturing process.

Implementation Method 1

The implementation of an attachment structure that aligns and supports the feed, take-up, and build modules through alignment pads and frames, ensuring precise positioning

Methodology Applied
Scientific EffectMechanical support and alignment:

Implementation Method 2

ensuring precise positioning and tension control of the resin support, thereby minimizing misalignment and operational issues

Methodology Applied
Scientific EffectTension control: Tension

Data Source

PatentEP4140696B1Attachment structure for additive manufacturing
Publication Date: 2026.04.01 GENERAL ELECTRIC CO
  • EP4140696B1 patent drawingFigure 1
  • EP4140696B1 patent drawingFigure 2A
  • EP4140696B1 patent drawingFigure 2B

AI summary

An additive manufacturing apparatus (10) includes a build module (22). A feed module (24) is configured to support a first portion of a resin support (28). The first portion of the resin support (28) is supported by a feed mounting panel (68). A take-up module (26) is configured to support a second portion of the resin support (28). The second portion of the resin support (28) is supported by a take-up mounting panel (74) and is positioned on an opposing side of the radiant energy device from the feed module (24). An adjustment assembly is configured to adjust a position of at least one of a feed mandrel (24A) within the feed module (24) or a take-up mandrel (26A) within the take-up module (26).