3D Print Bed Packing Using Reduced-Resolution Model Files
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Solution Overview
Problem
Mass production 3D printing systems face challenges in loading and processing large numbers of objects due to memory and processing limitations, leading to inefficient auto-packing algorithms and visualization tools that struggle with displaying and manipulating multiple objects effectively.
Innovation Solution
The use of reduced resolution 3D model files for generating and visualizing packing arrangements, which reduces file size and computational resources required, allowing for more efficient determination and display of optimal object placement in a print bed while considering thermal considerations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If full resolution 3D model files are used for packing arrangement determination, then manufacturing precision is maintained, but device complexity and processing time increase significantly
Solution Approach 1:
The patent segments the processing workflow into two distinct stages: (1) packing arrangement determination using reduced resolution model files, and (2) actual manufacturing using full resolution model files. This segmentation allows the computationally intensive packing optimization to use simplified models while the final manufacturing process uses high-fidelity models, thereby reducing overall system complexity without sacrificing precision.
Solution Approach 2:
The patent creates reduced resolution copies of the original full resolution 3D model files for the purpose of determining packing arrangements. These simplified copies retain the essential geometric features needed for packing optimization but require significantly less computational resources. The full resolution files are preserved and used only for the actual manufacturing process, thus resolving the contradiction between precision and complexity.
2Measurement precision
If full resolution 3D model files are used for visualization, then measurement precision is maintained, but loss of time occurs due to excessive processing requirements
Solution Approach 1:
The visualization process is segmented into two phases: pre-printing visualization using reduced resolution models for rapid display and manipulation, and post-printing visualization using full resolution models for detailed inspection. This segmentation eliminates the time penalty of processing full resolution files during interactive phases while preserving precision when needed.
Solution Approach 2:
Reduced resolution copies of the 3D models are generated specifically for visualization purposes in the user interface. These copies enable fast rendering and manipulation during packing arrangement review, while the original full resolution files remain available for final quality verification and manufacturing, thus eliminating unnecessary processing time without sacrificing measurement precision.
3Productivity
If large numbers of objects are loaded into memory for processing, then productivity increases, but device complexity increases due to memory and processing limitations
Solution Approach 1:
The patent applies local quality by using reduced resolution representations for the majority of objects during packing determination, while reserving full resolution data only for critical operations. This allows the system to handle large numbers of objects in memory with acceptable performance, as most objects only require simplified geometric data for packing optimization, thereby increasing productivity without proportionally increasing memory requirements.
Data Source
AI summary
According to examples, an apparatus may include a processor and a memory on which is stored machine readable instructions that when executed by the processor are to cause the processor to access a reduced resolution three-dimensional (3D) model file of an object to be built in a build bed of a 3D printing system, the reduced resolution 3D model file comprising a reduced resolution file of a first resolution 3D model file of the object. The instructions may also cause the processor to determine a packing arrangement for the object and a plurality of other objects to be built in the build bed through use of the reduced resolution 3D model file and output the determined packing arrangement for the 3D printing system to print the object and the other objects.