3D Shaping Device Lattice Stage for High Shrinkage Resin
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Solution Overview
Problem
Existing three-dimensional shaping devices face challenges in maintaining the positional relationship between shaped objects and stages when using materials with high resin shrinkage rates, as gaps can form between convex and concave portions, leading to detachment and loss of shaping accuracy.
Innovation Solution
A three-dimensional shaping device with a stage featuring grooves in a lattice shape, a discharge unit, and a control unit that moves the stage and discharge unit to form girder layers and floor layers, ensuring adhesion and maintaining the positional relationship through controlled lamination of shaping material, even with high shrinkage materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lattice-shaped stage with concave portions is used to prevent shaped object movement, then the shaped object can be detached from the stage when using materials with high resin shrinkage rates, but maintaining positional relationship and adhesion becomes difficult
Solution Approach 1:
The stage surface is segmented into multiple grooves arranged in a lattice pattern, creating discrete engagement points. The shaping material is deposited into these grooves to form convex portions that engage with the concave grooves, providing localized adhesion points that maintain positional accuracy even when overall adhesion is compromised by resin shrinkage.
Solution Approach 2:
The grooves are pre-formed on the stage surface before shaping material deposition. This preliminary structuring ensures that when the shaping material is deposited, it automatically fills the grooves and forms engagement features, preventing movement issues before they occur during the shaping process.
2Reliability
If shaping material is supplied to grooves to form girder layers, then adhesion is improved, but the complexity of the shaping process increases
Solution Approach 1:
The formation of girder layers is merged with the regular shaping material deposition process. The same discharge unit that deposits shaping material for the shaped object also fills the grooves to form girder layers, combining two functions into a single operational step without requiring additional equipment or processes.
Solution Approach 2:
The grooves serve multiple functions: they provide mechanical engagement features to prevent shaped object movement, and they serve as receptacles for forming girder layers that enhance adhesion. This multi-functionality eliminates the need for separate adhesion enhancement mechanisms, reducing overall system 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
The solution effectively prevents detachment of shaping material layers, maintaining the positional relationship and accuracy of the shaped object with the stage, even when using materials with high resin shrinkage rates, by forming a sacrificial layer that couples girder layers and floor layers, ensuring stable adhesion and precise shaping.
Implementation Method 1
a heat-dissolution lamination method of depositing a shaping material on a shaping surface of a stage
Data Source
AI summary
A three-dimensional shaping device includes: a stage whose shaping surface has a first groove and a second groove extending in a first direction; a discharge unit configured to supply a shaping material to the shaping surface; a movement mechanism configured to relatively move the stage and the discharge unit; and a control unit configured to control the discharge unit and the movement mechanism. The control unit is configured to control the movement mechanism and the discharge unit to: form a first girder layer by supplying the shaping material to the first groove while relatively moving the discharge unit in the first direction with respect to the stage, form a second girder layer by supplying the shaping material to the second groove while relatively moving the discharge unit in the first direction with respect to the stage, and form a first floor layer coupling the first girder layer and the second girder layer by supplying the shaping material to the shaping surface while relatively moving the discharge unit with respect to the stage.