3D Microstructure File Format for High-Fidelity Printing
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Solution Overview
Problem
Conventional 3D printing technologies struggle to efficiently represent and print complex microstructures such as fur, feather, or woven fabric due to the lack of an efficient digital representation of CAD models with fine material structure, leading to cumbersome and impractical file sizes and computational expenses.
Innovation Solution
A new file format, referred to as the .MESO format, is introduced to efficiently represent and process 3D microstructures, utilizing a data structure that includes node information, wire information, and shell information, along with functions for repetitive duplication, blending, and branching, enabling parallel processing and reduced file sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional CAD approaches use triangulated mesh 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 representing every microscopic element explicitly, thus reducing file size while maintaining geometric fidelity at relevant scales.
Solution Approach 2:
The patent transitions from representing microstructures in 3D space with full geometric detail to representing them through 2D parametric definitions that are then extruded or repeated. By moving the complexity from spatial representation to parameter space, the file size is dramatically reduced while preserving the ability to generate high-fidelity microstructures.
2Manufacturing precision
If conventional CAD approaches use triangulated mesh to represent dense microstructures, then geometric fidelity is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary action by defining microstructures through parametric rules and procedural generation algorithms before the actual 3D printing process. The slicing software pre-calculates the toolpaths and material deposition patterns based on these compact parametric definitions, avoiding the need to process enormous mesh files during manufacturing preparation.
Solution Approach 2:
Instead of creating and processing unique geometric data for every microstructure element, the patent uses copying through procedural repetition. A single parametric definition can generate thousands of identical or varied microstructural elements through automated repetition, dramatically reducing the computational burden compared to processing each element as a separate mesh object.
3Manufacturing precision
If high resolution stereolithography 3D printing is used to print intricate structures, then manufacturing precision is improved, but material usage increases
Solution Approach 1:
The patent explicitly designs microstructures with porous and lattice geometries that achieve high surface area and structural complexity using minimal material. The parametric control allows optimization of pore size, wall thickness, and lattice density to minimize material consumption while maintaining the desired mechanical properties and surface characteristics at high resolution.
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. Wires and their parameters are defined within the new file format, and objects may be processed to support 3D rendering operations. Such methods may be used to print new articles, such as eyelashes, bushes, swabs and other novel items.