3D Printed Structure Pairing Using Shape Feedback for Assembly Accuracy
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Solution Overview
Problem
Existing 3D printers often fail to produce structures with the intended shapes and dimensions, leading to inefficiencies and material waste due to unsatisfactory fabrication accuracy.
Innovation Solution
A management apparatus and method that utilize a fabrication system with a measuring apparatus to extract combinations of structures based on shape information, allowing for accurate assembly into products by identifying and managing structures throughout the fabrication process, including drying, degreasing, and sintering stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 3D printers are used to fabricate structures, then productivity is improved, but manufacturing precision deteriorates
Solution Approach 1:
The system measures the actual shape information of fabricated structures and feeds this data back to the management apparatus. The management apparatus then determines appropriate combinations of structures based on this feedback, allowing for compensation of fabrication deviations through intelligent pairing rather than requiring each individual structure to meet strict precision specifications.
Solution Approach 2:
The system changes the approach from controlling individual structure parameters to controlling combination parameters. By measuring actual shape information and determining combinations based on complementary deviations, the system transforms the precision problem from an individual structure issue to a system-level combination issue.
2Manufacturing precision
If all fabricated structures are discarded due to shape deviations, then manufacturing precision is maintained, but loss of substance increases
Solution Approach 1:
The system converts the harmful effect of shape deviations into a beneficial outcome by pairing structures with complementary deviations. Structures that would normally be discarded due to exceeding tolerance limits are instead utilized in combinations where their deviations compensate for each other, transforming waste into useful products.
Solution Approach 2:
Instead of discarding all structures with deviations, the system recovers and utilizes them by determining appropriate combinations. The management apparatus identifies which structures can be paired together to achieve acceptable overall precision, thereby recovering materials that would otherwise be wasted.
3Manufacturing precision
If strict tolerance control is applied to all structures, then manufacturing precision is improved, but productivity decreases
Solution Approach 1:
The system applies partial precision control by measuring and managing only the critical shape information necessary for combination determination. Rather than enforcing strict tolerance control on all structures, it applies precision management selectively to the combination level, reducing the overall precision control burden while maintaining product quality.
4Device complexity
If structure combinations are not managed, then device complexity is reduced, but manufacturing precision deteriorates
Solution Approach 1:
The management apparatus serves multiple functions: it stores shape information, determines appropriate combinations, and manages the fabrication process. This multi-functional approach consolidates complexity into a single system that handles both precision control and production management, rather than requiring separate systems for each function.
Data Source
AI summary
A management apparatus includes circuitry to manage multiple structures including a fabrication object fabricated by a fabrication apparatus in a fabrication area of the fabrication apparatus and extract a combination of two or more structures from the multiple structures based on shape information of the multiple structures.