3D Printing Device Threshold Validation for Fraud Prevention
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Solution Overview
Problem
Current 3D printing technologies allow fraudulent re-printing of partially completed objects by considering the printing process incomplete, enabling fraudsters to obtain usable 3D printed objects without full payment.
Innovation Solution
Implementing a method where a 3D printing device monitors the printing progress and updates data when a predetermined threshold is reached, ensuring the printing process is validated and further printing is restricted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the printing device considers the printing process incomplete when interrupted, then the device allows re-printing to obtain usable objects, but this enables fraudulent re-printing without full payment
Solution Approach 1:
The system pre-defines printing thresholds (e.g., 50%, 80%, 100%) that represent valid completion points. When the printing process reaches any of these thresholds, the system automatically validates the printing and prevents further re-printing attempts, thus securing payment before allowing the object to be used
Solution Approach 2:
The printing device continuously monitors the current printing progress rate and compares it against predefined thresholds. This feedback mechanism triggers automatic validation when a threshold is reached, ensuring that fraudulent re-printing attempts are detected and blocked while legitimate completions are recognized
2Reliability
If the printing device monitors printing progress continuously, then fraudulent re-printing is prevented, but the system complexity increases
Solution Approach 1:
The system pre-sets multiple printing thresholds (e.g., 50%, 80%, 100%) that represent valid completion points. This preliminary configuration simplifies the monitoring process by providing clear validation criteria, reducing the complexity of real-time decision-making while maintaining security
Solution Approach 2:
The system uses discrete progress rate parameters (thresholds) to simplify continuous monitoring. By converting the continuous printing progress into discrete threshold comparisons, the system reduces computational complexity while maintaining accurate fraud detection capability
3Reliability
If the printing threshold is set high to ensure complete printing, then fraud prevention is improved, but partially completed usable objects cannot be validated
Solution Approach 1:
The system segments the printing completion validation into multiple discrete thresholds (e.g., 50%, 80%, 100%). This allows partially completed objects that reach any threshold to be validated as usable, while still preventing fraud by requiring genuine progress. Each threshold represents a valid completion point for different use cases
Solution Approach 2:
The system adjusts the printing threshold parameter to balance fraud prevention and productivity. By configurable thresholds, the system can be tuned to validate objects at different completion levels, allowing usable partially completed objects to be recognized while maintaining security against fraudulent re-printing
Data Source
AI summary
A method, a device and a system for printing a three dimensional object are disclosed. A printing device, as a first device, or a second device stores predetermined data relating to one or several printings. The second device cooperates with the first device. The first or the second device stores a predetermined printing threshold. The first or the second device determines and stores, during a printing of the three dimensional object, at least one current printing progress rate. The first or the second device compares the current printing progress rate to the predetermined printing threshold. As soon as the current printing progress rate is greater than or equal to the predetermined printing threshold, the first or the second device updates the data relating to one or several printings, so as to validate the printing of the three dimensional object.