3D Printing Non-Planar Surfaces with Variable Bead Sizes
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Solution Overview
Problem
Conventional 3D printing methods face challenges in creating non-planar surfaces with thermoset materials, resulting in jagged step patterns and difficulties in achieving smooth, durable, and structurally sound objects due to limitations in controlling bead sizes and extrusion rates.
Innovation Solution
A computer system dynamically controls a thermoset 3D printer by calculating and generating multiple different bead sizes at specific locations within a printing area, adjusting extrusion rates, and using coreactive materials to create smooth non-planar surfaces by varying bead sizes based on geometric ratios and material properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional 3D printing methods use uniform bead sizes for thermoset materials, then the printing process is simple to control, but the resulting surface becomes jagged and non-smooth
Solution Approach 1:
The patent applies local quality by varying bead sizes according to the local geometric requirements of the non-planar surface. Different regions of the print area receive differently sized beads based on their specific location and surface curvature needs, enabling smooth surface formation while maintaining manageable process complexity through systematic local adaptation.
Solution Approach 2:
The patent implements dynamics by making the bead size a variable parameter that changes dynamically across the print area rather than remaining static and uniform. The system dynamically adjusts bead dimensions based on spatial coordinates and surface geometry, transforming the printing process from a rigid uniform approach to a flexible adaptive one that achieves smooth non-planar surfaces.
2Strength
If conventional 3D printing uses fixed extrusion rates, then the printing process is easy to manage, but the structural integrity and durability of the printed object deteriorate
Solution Approach 1:
The patent applies local quality to extrusion rate control by setting different extrusion rates for different locations within the print area. Regions requiring higher structural integrity receive optimized extrusion rates that ensure proper material deposition and bonding, while other regions use rates appropriate to their specific requirements, thereby enhancing overall structural integrity without uniform complexity.
Solution Approach 2:
The patent implements parameter changes by making the extrusion rate a variable parameter that changes according to spatial position and material requirements. The system dynamically adjusts extrusion rate parameters across different zones of the print area, transforming the process from fixed-rate to adaptive-rate control, which improves structural integrity while managing complexity through systematic parameter variation.
3Manufacturing precision
If conventional 3D printing creates non-planar surfaces with uniform layers, then the printing process is straightforward, but the surface quality becomes jagged and stepped
Solution Approach 1:
The patent applies local quality by tailoring bead characteristics to local surface requirements rather than applying uniform layering throughout. Each region of the non-planar surface receives customized bead parameters based on its specific geometric demands, enabling high surface quality while keeping the manufacturing process manageable through systematic local adaptation rather than universal complexity.
Solution Approach 2:
The patent implements dynamics by transforming the static uniform layering approach into a dynamic bead deposition process. The system dynamically adjusts bead parameters based on spatial position and surface geometry, enabling the creation of smooth non-planar surfaces. This dynamic approach improves surface quality while maintaining ease of manufacture through algorithmic control rather than manual complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the production of smooth non-planar surfaces with improved structural integrity and durability by precisely controlling bead sizes and extrusion rates, overcoming the limitations of conventional methods.
Implementation Method 1
calculate multiple different bead sizes for creating the non-planar surface using thermoset components
Data Source
AI summary
A computer system for dynamically controlling a three-dimensional printer may comprise one or more processors and one or more computer-readable media having stored thereon executable instructions that, when executed by the one or more processors, configure the computer system to perform various acts. The computer system may receive an indication to cause a three-dimensional printer to print a non-planar surface. Additionally, the computer system may calculate multiple different bead sizes for creating the non-planar surface using components of the three-dimensional printer. The computer system may also create a command to generate the multiple different bead sizes at locations within a printing area.