3D Printing Regulating Body Linear Segmentation for Peeling
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Solution Overview
Problem
In three-dimensional modeling using the regulated liquid surface method, the peeling process of cured resin from a glass or film surface is challenging due to increasing force requirements with larger modeling areas, often resulting in model collapse or peeling from the base.
Innovation Solution
A three-dimensional modeling apparatus with a regulating body having a linear surface that moves relative to the stage, allowing for clean peeling of the cured material by forming a slit region and using a movement mechanism to separate the cured layer, along with an irradiation unit that transmits energy through the regulating body for precise curing and peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the regulated liquid surface method is used with a flat glass surface, then the liquid surface can be regulated and maintained flat, but the peeling force required becomes excessively high for large modeling areas, causing model collapse or peeling from the base
Solution Approach 1:
The patent divides the continuous glass surface into discrete linear regions separated by gaps. Instead of peeling from a single large continuous surface, the cured layer is separated from multiple smaller linear regions, significantly reducing the peeling force required for each region while maintaining overall surface flatness control.
Solution Approach 2:
The patent introduces a gap dimension between adjacent linear regions on the glass surface. This dimensional separation allows the curing process to occur in discrete zones, enabling the cured layer to be released from each zone independently with reduced force, while the overall surface geometry is maintained through the arrangement of these linear regions.
2Area of stationary object
If the modeling area is increased, then more complex or larger models can be produced, but the peeling force required increases proportionally, leading to model collapse
Solution Approach 1:
The patent segments the large glass surface into multiple smaller linear regions with gaps between them. This segmentation allows the total modeling area to be large while the peeling force required for each individual region remains low, preventing model collapse even for large-scale productions.
3Manufacturing precision
If a continuous glass surface is used for regulation, then surface flatness is maintained, but the apparatus cannot be downsized and the irradiation unit has limited flexibility
Solution Approach 1:
The patent segments the glass surface into linear regions with gaps, which allows the glass to be smaller in overall size while still providing sufficient surface area for modeling. This segmentation enables the apparatus to be downsized compared to a continuous glass surface design.
Solution Approach 2:
The patent uses the gap dimension between linear regions to break the continuity of the glass surface. This dimensional approach allows the glass to be configured in a compact arrangement that maintains surface flatness control while reducing the overall apparatus size and increasing irradiation unit flexibility.
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
Enables clean and accurate peeling of the cured material with reduced force, maintaining model integrity and improving surface flatness and layer thickness accuracy, while allowing for a more compact apparatus design and increased irradiation unit flexibility.
Implementation Method 1
a material to be cured by energy of an energy beam is supplied to a slit region
Implementation Method 2
an irradiation unit that transmits energy through the regulating body for precise curing
Data Source
AI summary
A three-dimensional modeling apparatus includes: a stage; a regulating body having a surface including a linear region along a first direction and being arranged to face the stage so that the linear region of the surface comes closest to the stage; a supply nozzle configured to supply a material to be cured by energy of an energy beam to a slit region which is a region between the stage and the linear region; a movement mechanism configured to move the regulating body and the stage relative to each other along a second direction other than the first direction to form a cured layer of the material for at least one layer; and an irradiation unit configured to irradiate the material supplied from the supply nozzle to the slit region with the energy beam under a state in which the stage and the regulating body rest relative to each other.