3D Modeling Controller for Interlayer Overlap and Velocity Control
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Solution Overview
Problem
Three-dimensional modeling apparatuses face difficulties in fixing subsequent layers due to differences in modeling path directions, leading to challenges in interlayer strength and precision.
Innovation Solution
A controller that adjusts movement velocity and path width based on overlap extent and angle between layers, using stored modeling path and correspondence information to optimize layer stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the modeling path direction of the n layer is changed to be different from the (n-1) layer, then the modeling precision and interlayer alignment are improved, but the interlayer strength and fixation difficulty deteriorate
Solution Approach 1:
The patent applies dynamics by making the modeling path direction variable rather than fixed. The n layer's modeling path direction is dynamically adjusted to be different from the (n-1) layer, allowing optimization of both alignment precision and interlayer strength through controlled directional changes in the modeling process
Solution Approach 2:
The patent changes the parameter of modeling path direction between layers. By varying the direction angle of the n layer relative to the (n-1) layer, the system optimizes the balance between achieving precise interlayer alignment and maintaining sufficient interlayer strength for proper fixation
2Manufacturing precision
If the modeling path direction of the n layer is changed to be different from the (n-1) layer, then the modeling precision is improved, but the difficulty of fixing the n layer on the (n-1) layer increases
Solution Approach 1:
The system dynamically adjusts the modeling path direction for each layer, making the manufacturing process adaptable. This dynamic approach allows the n layer to be deposited at an optimized angle that simultaneously achieves precise alignment and maintains ease of fixation through proper material bonding
3Strength
If the movement velocity of the injection unit is adjusted based on overlap extent, then the interlayer strength is improved, but the productivity decreases due to additional control complexity
Solution Approach 1:
The patent implements feedback control by using correspondence information that correlates overlap extent with optimal movement velocity. The system measures or calculates the overlap extent between layers and adjusts the movement velocity accordingly, creating a closed-loop control system that optimizes interlayer strength while managing productivity
Solution Approach 2:
The movement velocity parameter is dynamically changed based on the overlap extent between layers. By adjusting velocity as a variable parameter rather than maintaining a constant speed, the system optimizes material deposition and bonding conditions to enhance interlayer strength
4Strength
If the width of the modeling path is adjusted based on overlap extent, then the interlayer strength is improved, but the device complexity increases due to additional control parameters
Solution Approach 1:
The system uses feedback control by referencing correspondence information that links overlap extent with optimal path width. This allows the control system to automatically adjust path width based on actual layer overlap conditions, improving interlayer strength while managing complexity through systematic control
Solution Approach 2:
The modeling path width is adjusted as a controllable parameter based on overlap extent measurements. By making path width a variable parameter rather than a fixed value, the system can optimize material distribution and interlayer bonding to enhance strength
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
Enhances interlayer strength and precision by ensuring proper alignment and heat transfer between layers, improving the overall quality of the three-dimensional modeled object.
Implementation Method 1
a three-dimensional modeling apparatus modeling a three-dimensional modeled object by stacking of layers of a modeling material, which is at least partially molten
Implementation Method 2
injecting the modeling material onto the stage using the injection unit and stacking the N modeling layers
Data Source
AI summary
A controller includes a processor controlling a three-dimensional modeling apparatus including a stage, an injection unit injecting a modeling material, and a movement unit relatively moving the stage and the injection unit, and a memory unit in which modeling path information and correspondence information are stored, wherein the modeling path information is information representing respective modeling paths of N modeling layers, the correspondence information is information in which overlap extent information representing an extent of overlap of the modeling paths and velocity information representing a relative movement velocity of the injection unit to the stage are correlated, the processor performs modeling control to model a three-dimensional modeled object by stacking the N modeling layers, and the modeling control includes movement velocity control to determine the movement velocity when the respective N modeling layers are formed by the injection unit based on the modeling path information and the correspondence information.