3D Microstructure File Format for Dense Wireframe Printing
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Solution Overview
Problem
Conventional 3D printing technologies face challenges in directly printing extremely dense microstructures such as fur, feather, or woven fabric due to the lack of efficient digital representation of CAD models with fine material structure, leading to large file sizes and computational inefficiencies.
Innovation Solution
The introduction of a new file format, MESO (.MESO or .meso), which provides an advanced interface for designers and 3D printers, enabling efficient workflows for computational design and data transfer by representing 3D microstructures with a data structure comprising node information, wire information, shell information, and parameters for thickness, shape, and twist, allowing for the precise representation and printing of intricate features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional CAD models with triangulated mesh are used to represent dense microstructures, then geometric fidelity is improved, but file size becomes extremely large and processing becomes computationally expensive
Solution Approach 1:
The patent segments the microstructure representation into hierarchical levels: macro-geometry defined by coarse mesh and micro-structures defined by procedural parameters. This allows the model to capture fine details without explicitly representing every microscopic element, thereby reducing file size while maintaining geometric fidelity at the relevant scale.
Solution Approach 2:
The patent transforms the representation from explicit geometric data (millions of triangles) to parametric definitions (material properties, structural parameters, procedural rules). By changing from a static mesh to a parametric model, the system can generate high-fidelity microstructures through algorithms rather than storing exhaustive geometric data, dramatically reducing file size.
2Manufacturing precision
If conventional CAD models with triangulated mesh are used to represent dense microstructures, then geometric fidelity is improved, but processing time increases due to computational expense
Solution Approach 1:
The patent performs preliminary computational work by defining procedural generation rules and material models before the actual printing process. The slicing software uses these pre-defined parameters to efficiently generate toolpaths without needing to process exhaustive mesh data, thereby reducing processing time while maintaining geometric fidelity.
Solution Approach 2:
The patent replaces the traditional mechanical approach of processing large mesh files with a computational approach using procedural generation and parametric modeling. Instead of manipulating millions of triangular elements, the system uses algorithms to generate microstructures on-the-fly from compact parametric definitions, dramatically reducing computational burden and processing time.
3Manufacturing precision
If high-resolution 3D printing is used to print extremely dense microstructures, then manufacturing precision is improved, but material usage and weight increase
Solution Approach 1:
The patent explicitly models porous and lattice structures as the intended micro-geometry. By designing with controlled porosity and hierarchical void spaces, the system achieves high manufacturing precision for complex microstructures while dramatically reducing material usage. The procedural generation allows optimization of pore distribution and connectivity to minimize material while maintaining structural integrity.
Solution Approach 2:
The patent models composite structures with multiple materials or phases at the micro-scale. By using parametric definitions of material distribution, the system can create optimized composite architectures that achieve desired mechanical properties with minimal material usage, leveraging the high resolution printing capability to create complex multi-material microstructures.
Data Source
AI summary
Systems, methods, and new file formats are provided for printing 3D microstructures. In some implementations, a new file format is provided that defines 3D objects by a wireframe model expressed as a collection of wires. Because wires and their parameters are defined within the new file format, objects may be processed more efficiently and quickly to support 3D rendering operations. Such methods may be used to print new articles, such as eyelashes, bushes, swabs and other novel items.