3D Printer Build Unit Material Verification for Parameter Matching

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Solution Overview

Problem

In 3D printing systems, there is a risk of operating with incorrect parameters when refilling build units with different build materials, potentially leading to unsafe and suboptimal print operations due to the lack of accurate representation of the material type in the system.

Innovation Solution

Implementing a dual register system on the build unit that is readable by the 3D printer, where the build powder management station sets values representing the added material, and a key reader mechanism ensures that only compatible parameters are used for printing, preventing operations with mismatched register values.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the build unit is refilled with different build materials, then the system can handle multiple material types, but the risk of using incorrect parameters increases

Engineering Contradiction:

Improvematerial type compatibilityVSAvoidparameter accuracy

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system uses register values as feedback to confirm material-parameter matching. The build unit provides register values indicating the material type, and the control circuit continuously verifies that the operating parameters match these register values, creating a closed-loop verification system that prevents mismatches

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

Register values act as an intermediary between the physical build material and the digital control parameters. The registers store material identification data that mediates the connection between the material in the build unit and the printing parameters, ensuring correct pairing without direct human intervention

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If manual parameter setting is allowed, then ease of operation improves, but the likelihood of human error increases

Engineering Contradiction:

Improverefilling convenienceVSAvoidparameter correctness

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The build unit performs self-identification by providing register values that automatically indicate the material type. The system eliminates the need for manual parameter input by allowing the build unit to self-describe its contents, and the control circuit automatically configures parameters based on this self-provided information

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The register values are pre-configured in the build unit before refilling operations. This preliminary encoding of material information ensures that when the build unit is connected to the 3D printer, the correct parameters are already identified and ready, preventing any possibility of manual configuration errors

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11247402B2Three-dimensional printing

Publication Date: 2022.02.15 PERIDOT PRINT LLC

AI summary

An apparatus and method for performing a print operation on a 3D printer (110) are described herein. A 3D printing apparatus comprising a 3D printer (110) is arranged to perform a print operation using build material from a build unit (120) unless a value that identifies a first build material stored in the build unit in a first register, which is set according to an initial build powder fill operation of the build unit (120) by a powder management station, is different from a value in a second register, which is set according to the initial build powder fill operation, or modified in response to, or following, a subsequent opening of the build unit (120).