Multi-Module 3D Printing System for Precision and Speed
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Solution Overview
Problem
Current 3D printing technologies are limited by the need for specific materials and precision, leading to slower build rates and higher costs, with most 3D printers being used for demonstration parts or non-functional prototypes, and lacking the ability to efficiently produce complex objects with varied materials and high precision.
Innovation Solution
A multi-material, multi-method 3D printing system that combines different printing technologies such as jetted binder, directed energy, and electrophotographic techniques to optimize material selection and precision for specific voxels within a part, allowing for the use of various materials and achieving faster build rates by using a central computer system to coordinate the deposition of materials at precise locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If jetted binder technology is used to achieve fast build rates, then productivity is improved, but manufacturing precision deteriorates due to minimum practical layer thickness of 25 micrometers
Solution Approach 1:
The printing system is divided into multiple printer modules, each capable of producing patterned single-layer objects. These modules can be selectively assembled to create different regions of the final 3D object, allowing each module to operate at its optimal precision or speed for its specific region.
Solution Approach 2:
Different regions of the 3D object can be printed using different technologies optimized for their specific requirements. High precision regions use electrophotographic printing while high volume regions use jetted binder technology, allowing each area to have the quality needed for its function.
2Manufacturing precision
If electrophotographic printing is used to achieve high precision, then manufacturing precision is improved, but productivity deteriorates due to low mass deposition rate
Solution Approach 1:
The printing system is divided into multiple printer modules, each capable of producing patterned single-layer objects. These modules can be selectively assembled to create different regions of the final 3D object, allowing each module to operate at its optimal precision or speed for its specific region.
Solution Approach 2:
Different regions of the 3D object can be printed using different technologies optimized for their specific requirements. High precision regions use electrophotographic printing while high volume regions use jetted binder technology, allowing each area to have the quality needed for its function.
3Adaptability or versatility
If FDM technology is used to achieve material flexibility, then adaptability is improved, but productivity deteriorates due to slow build rates
Solution Approach 1:
The printing system integrates multiple printing technologies (jetted binder, electrophotographic, directed energy) into a single platform that can handle different materials and requirements. This multi-functional approach allows the system to be versatile in material selection while maintaining high build rates through the use of faster printing methods for appropriate applications.
Solution Approach 2:
The system can change the printing parameters and technology used based on the material properties and part requirements. By adjusting parameters such as layer thickness, deposition rate, and printing method, the system optimizes both material flexibility and build speed for each specific printing task.
4Device complexity
If single material printing is used to simplify the system, then device complexity is reduced, but adaptability deteriorates due to inability to incorporate multiple materials
Solution Approach 1:
The printing system integrates multiple printing technologies (jetted binder, electrophotographic, directed energy) into a single platform that can handle different materials and requirements. This multi-functional approach allows the system to be versatile in material selection while maintaining high build rates through the use of faster printing methods for appropriate applications.
Solution Approach 2:
The printing system is divided into multiple printer modules, each capable of producing patterned single-layer objects. These modules can be selectively assembled to create different regions of the final 3D object, allowing each module to operate at its optimal precision or speed for its specific region.
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 the production of complex three-dimensional objects with varied materials and high precision, improving build rates and reducing costs by optimizing material deposition and precision according to specific application requirements.
Implementation Method 1
These printers rapidly deposit a full layer of powder and then fix a pattern in the powder by depositing a binding agent via an ink jet-type printing head
Implementation Method 2
The phase change may be brought about by sintering or melting by computer guided application of a laser or electron beam
Implementation Method 3
The phase change may be brought about by sintering or melting by computer guided application of a laser or electron beam
Implementation Method 4
Printing techniques such as electrophotography are capable of printing large areas with very high precision very rapidly
Data Source
AI summary
A three-dimensional, additive manufacturing system is disclosed. The first and second printer modules form sequences of first patterned single-layer objects and second patterned single-layer objects on the first and second carrier substrates, respectively. The patterned single-layer objects are assembled into a three-dimensional object on the assembly plate of the assembly station. A controller controls the sequences and patterns of the patterned single-layer objects formed at the printer modules, and a sequence of assembly of the first patterned single-layer objects and the second patterned single-layer objects into the three-dimensional object on the assembly plate. The first transfer module transfers the first patterned single-layer objects from the first carrier substrate to the assembly apparatus in a first transfer zone and the second transfer module transfers the second patterned single-layer objects from the second carrier substrate to the assembly apparatus in a second transfer zone. The first and second printer modules are configured to deposit first and second materials under first and second deposition conditions, respectively. The first and second materials are different and/or the first and second deposition conditions are different.