Stereolithography Object Placement Zones
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing stereolithography methods lack an efficient method to automatically place multiple three-dimensional objects in a formation area, leading to suboptimal use of space and increased irradiation areas during simultaneous object formation.
Innovation Solution
The method involves creating multiple placement zones on the elevator platform, where three-dimensional objects are arranged in descending order of height, with higher objects placed centrally and in descending order within each zone, minimizing the irradiation area by concentrating objects near the center and optimizing the use of space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple three-dimensional objects are placed in the formation area without automatic placement optimization, then the formation area can accommodate objects, but the space utilization is suboptimal and the irradiation area is increased
Solution Approach 1:
The formation area is divided into multiple placement zones, with the first placement zone positioned at the center and subsequent placement zones arranged alternately on opposite sides. This segmentation allows systematic arrangement of three-dimensional objects in descending order of height, optimizing space utilization while limiting the irradiation area to the central region where the scanner is positioned.
Solution Approach 2:
Different placement zones are assigned different positions relative to the center of the formation area. The first placement zone is located at the center to minimize irradiation area, while subsequent zones are arranged on opposite sides to maximize space utilization. This local differentiation optimizes both the irradiation area and the number of objects that can be formed simultaneously.
2Productivity
If three-dimensional objects are placed to maximize the number of objects in the formation area, then productivity increases, but the arrangement complexity increases
Solution Approach 1:
The controller automatically determines the placement zones and arranges three-dimensional objects in advance before the formation process begins. The placement zones are predetermined with the first zone at the center and subsequent zones on opposite sides, and objects are pre-arranged in descending order of height within each zone, simplifying the overall process.
Solution Approach 2:
The placement arrangement is dynamically adapted based on the number and characteristics of three-dimensional objects to be formed. The controller automatically adjusts the placement zones and object positions to optimize both productivity and arrangement simplicity, rather than using a fixed rigid pattern.
3Use of energy by moving object
If the irradiation area is minimized by concentrating objects near the center, then energy efficiency improves, but the number of objects that can be formed simultaneously decreases
Solution Approach 1:
Instead of simply concentrating objects in a single central point, the solution extends the arrangement to multiple dimensions by creating placement zones on opposite sides of the center. This allows objects to be distributed in a three-dimensional pattern that maintains proximity to the scanner while maximizing the number of objects that can be formed simultaneously.
Solution Approach 2:
Multiple placement zones on opposite sides of the center are merged into a coordinated arrangement system. The scanner positioned at the center can efficiently irradiate objects in multiple zones simultaneously, combining the benefits of centralized irradiation with distributed object placement to achieve both energy efficiency and high productivity.
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 allows for the efficient placement of multiple three-dimensional objects, reducing the irradiation area and improving the formation process by concentrating objects near the center, thereby enhancing the accuracy and efficiency of object formation.
Implementation Method 1
a light beam is directed into the vat through the opening. When forming a three-dimensional object, the stereolithography apparatus first positions the elevator platform at a height lower than the liquid surface of the photocurable liquid resin... scans a light beam over the necessary area using the scanner to cure the photocurable liquid resin and form the bottom layer of the three-dimensional object
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A stereolithography method is provided by which, when forming three-dimensional objects simultaneously, the three-dimensional objects can be efficiently arranged automatically within the formation area. According to this stereolithography method, formed objects corresponding to one set of three-dimensional objects S are formed in a formation area A on a lifting table, by selectively irradiating a curing material with light rays to cure a photocurable resin. In the stereolithography method, the set of formed objects S is placed in the formation area A by a control device, a plurality of placement zones Z demarcated by borderlines B extending in the extension direction Y of a recoater for adjusting the liquid levels are established, and the control device places the formed objects S within the placement zones Z, in order from articles of greater height H, and in order starting from a first placement zone Z1 among the plurality of placement zones Z.