3D Printing Apex Fluid Control for Clean Outline Formation
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Solution Overview
Problem
Three-dimensional modeling apparatuses face challenges in forming clean outlines of objects with recesses, as excess fluid material tends to wet-spread from apexes, leading to irregular outlines due to uneven material distribution.
Innovation Solution
A three-dimensional modeling apparatus with a control system that reduces the amount of fluid material ejected at apex coordinates compared to other coordinates, using a combination of ejection and correction processes to form clean outlines by controlling the fluid material distribution across cross-section bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uniform fluid material ejection is performed at all coordinates, then the cross-section body can be formed efficiently, but the outline becomes irregular due to wet-spreading from apex sections
Solution Approach 1:
The patent applies local quality by differentiating the fluid material ejection amount based on coordinate type. Apex coordinates (corresponding to recesses) receive reduced ejection amounts compared to non-apex coordinates, creating localized quality differences that prevent wet-spreading while maintaining overall formation efficiency
2Manufacturing precision
If the amount of fluid material at apex coordinates is reduced, then wet-spreading is suppressed and outlines become cleaner, but the cross-section body formation process becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-classifying coordinates into apex and non-apex types before the fluid material ejection process begins. This pre-processing step identifies which coordinates require reduced ejection amounts, allowing the main formation process to proceed efficiently with pre-determined parameter settings
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 effectively suppresses wet-spreading and ensures a clean outline formation by adjusting the material distribution, allowing for precise and accurate modeling of object outlines.
Implementation Method 1
an ejection portion (10) capable of ejecting a fluid material (MT), which is a material of the object
Implementation Method 2
there is a tendency for an amount of the fluid material that flows into dots that configure the apexes from dots in the periphery to be greater than an amount of the fluid material that flows into dots that configure other outline sections from the periphery thereof
Data Source
AI summary
A three-dimensional modeling apparatus includes an ejection portion capable of ejecting a fluid material, and a control portion that forms a laminated body in which one layer or more of cross-section bodies are laminated by executing one or more repetitions of a cross-section body formation process. The control portion reduces a total amount of the fluid material to be ejected at a first coordinate, which configures the apex that corresponds to the recess, to be lower than a total amount of the fluid material to be ejected at a second coordinate, which configures a region other than an outline section of the planar shape in a case in which an apex, which corresponds to a recess in a planar shape when the laminated body is viewed from above in a planar manner, is present.