Multi-axis Build Platform for Complex Geometry Fabrication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing additive manufacturing systems face challenges in adapting to additional axes due to space, initial cost, and control constraints, limiting their ability to fabricate complex geometries with multiple material characteristics and operations.
Innovation Solution
A replacement build platform with a two-axis configuration that rotates about perpendicular axes, integrated with a processor module using machine learning models like Hidden Markov Models to predict machine control codes and optimize axis movements, allowing for the expansion of existing systems to include additional axes without significant hardware changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional 3-axis additive manufacturing systems are used, then the system structure is simple and cost is low, but the ability to fabricate complex geometries is limited
Solution Approach 1:
The build platform is divided into two independent rotational axes (first axis and second axis) that can operate separately and cooperatively. This segmentation allows the system to achieve multi-axis capability without requiring a complete system redesign, as each axis can be controlled independently to fabricate different portions of complex geometries.
Solution Approach 2:
The build platform transitions from a static position to a dynamically adjustable orientation through the two rotational axes. The platform can rotate about the first axis and the second axis independently, enabling dynamic repositioning during the fabrication process to access complex geometric features that would be impossible with a fixed build platform.
2Adaptability or versatility
If multi-axis systems are implemented, then complex geometries can be fabricated, but space requirements and initial cost increase
Solution Approach 1:
The build platform serves multiple functions: it acts as both the deposition surface and the rotational mechanism for multi-axis fabrication. By integrating the two rotational axes directly into the build platform structure, the system eliminates the need for separate positioning mechanisms, reducing both space requirements and initial cost while maintaining multi-axis capability.
Solution Approach 2:
The first and second rotational axes are merged into a single integrated build platform assembly rather than being implemented as separate mechanical systems. This consolidation reduces the overall space required for the system and lowers initial costs by sharing structural components, while still providing the full multi-axis fabrication capability.
3Manufacturing precision
If multi-axis build platforms are added, then geometric precision is improved, but control complexity increases
Solution Approach 1:
The system incorporates feedback mechanisms that monitor the position and orientation of the build platform during rotation about both axes. This feedback enables real-time adjustment of deposition parameters and platform positioning, maintaining geometric precision despite the increased control complexity of multi-axis operation.
Solution Approach 2:
A control intermediary layer is introduced that coordinates the complex interactions between the two rotational axes and the material deposition process. This intermediary manages the control constraints by breaking down complex multi-axis movements into manageable sequences, maintaining geometric precision while simplifying the overall control architecture.
Data Source
AI summary
A system and method for adding two-axis to a multi-axis additive manufacturing system. The system may include a build platform and a two-axis build portion rotationally coupled to the planar build portion about a first axis, the two-axis build platform further being configured to rotate about a second axis, the second axis being perpendicular to the first axis. The build platform may be used in connection with a predictive or a nonpredictive method of operation. In the predictive mode, a motion processor predicts a next-state machine control code for controlling a position of the two-axis build portion.