Build Material Data Unit Mounting for AM Authentication

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Solution Overview

Problem

Additive manufacturing processes face challenges with build material identification and authentication, particularly in ensuring the authenticity and compatibility of materials, which can lead to equipment damage, object failure, and safety risks due to overheating or adverse reactions.

Innovation Solution

A data unit is removably attached to build material containers, containing additive manufacturing parameters and authentication features, allowing secure and authorized use of the material in additive manufacturing processes, with features to prevent tampering and ensure compatibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If build material authentication and identification systems are implemented, then safety and reliability are improved, but device complexity increases

Engineering Contradiction:

Improvebuild material authenticationVSAvoiddata unit attachment system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The data unit is integrated within the build material container structure, with the circuit board and antenna nested inside the container housing. This nesting approach embeds the authentication system within the existing container design, adding functionality without significantly increasing overall device complexity or requiring separate external authentication components.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The build material container performs self-authentication by containing an integrated data unit with identification data and communication circuitry. The container automatically provides authentication information to the additive manufacturing system without requiring external verification devices or manual intervention, enabling the material to self-verify its authenticity and compatibility.

Inventive Principle:

Principle #25Self-service

2Reliability

If removable data units are attached to build material containers, then material compatibility and authorization are ensured, but ease of operation deteriorates

Engineering Contradiction:

Improvematerial compatibilityVSAvoidcontainer handling

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The data unit is merged with the build material container as an integrated assembly, where the circuit board and antenna are mounted within the container housing. This combination ensures that authentication data travels with the material itself, preventing unauthorized substitution while maintaining straightforward container handling procedures.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Authentication data is pre-loaded into the data unit during container assembly or manufacturing. The identification information, material parameters, and authorization data are prepared in advance and stored in the container's integrated circuit board, enabling immediate verification upon insertion into the additive manufacturing system without requiring real-time data generation or external configuration.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If authentication data is stored in build material containers, then unauthorized use is prevented, but manufacturing precision requirements increase

Engineering Contradiction:

Improveunauthorized use preventionVSAvoiddata unit integration

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The authentication system is implemented with localized functional zones within the container: the antenna is positioned in specific regions for optimal wireless communication, the circuit board is mounted in designated areas for electrical connectivity, and the data storage elements are placed in protected locations. This spatial differentiation ensures each component performs its function effectively while maintaining overall system reliability.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The data unit is designed as a disposable component integrated with single-use or limited-use build material containers. Each container includes its own authentication data unit that validates the material's authenticity and authorization. Once the material is consumed or the container is emptied, the data unit's function is complete, eliminating the need for complex reusable authentication mechanisms.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentEP3386724B1Data units for build material identification in additive manufacturing

Publication Date: 2025.11.05 PERIDOT PRINT LLC

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AI summary

In an example, a data unit includes a data unit mounting having a circuitry region, a registration portion,and a retaining feature. Circuitry comprising a data source to provide at least one additive manufacturing parameter is arranged on the circuitry region of the mounting. The data unit mounting is to be removably mounted on a receiving portion of an additive manufacturing build material component, such that the registration portion is to be received in a corresponding guide portion of the receiving portion of the additive manufacturing build material component,and the retaining feature is prevent removal of the data unit from the receiving portion unless deformed. Deformation of the retaining feature to effect removal of the data unit from the receiving portion may be a permanent deformation.