Modular 3D Printer Frame with Damped Z-Stage for Vibration Isolation
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Solution Overview
Problem
Current three-dimensional printers face challenges in achieving a balance between stiffness for location accuracy and vibration isolation, while also requiring design flexibility, positional accuracy, ease of installation, and low system costs.
Innovation Solution
A modular three-dimensional printer frame is designed with a z-stage frame, a damper frame, mounts, and dampers to support the build platform and print head, providing vibration isolation and alignment while allowing for modular Z-heights and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a rigid structural base frame is used to maintain location accuracy, then stiffness is improved, but vibration isolation of the x-y platform relative to the z-platform deteriorates
Solution Approach 1:
The frame is divided into separate components (z-stage frame, damper frame, mounts, dampers) that can be independently optimized. The rigid z-stage frame provides structural stability while the separate damper components provide vibration isolation, resolving the contradiction between stiffness and vibration damping.
Solution Approach 2:
Dampers are introduced as intermediary elements between the z-stage frame and damper frame, and between moving components. These dampers act as mediators that isolate vibrations while allowing the rigid frames to maintain their structural integrity and positioning accuracy.
2Manufacturing precision
If alignment features are added to ensure x-y stage alignment to z-stage platform, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
Alignment features are pre-integrated into the modular frame components during manufacturing. The mounts and frame sections include built-in alignment mechanisms that automatically guide proper positioning during assembly, eliminating the need for complex post-assembly alignment procedures.
Solution Approach 2:
The frame allows for adjustable and reconfigurable alignment features that can be modified based on specific printing requirements. The modular design enables dynamic adjustment of Z-heights and stage positions while maintaining alignment through interchangeable components.
3Adaptability or versatility
If modular Z-height design is implemented to provide design flexibility, then adaptability is improved, but alignment precision between x-y stage and z-stage platform deteriorates
Solution Approach 1:
The Z-stage frame is segmented into modular sections with standardized interfaces. Each module can be independently manufactured with precise alignment features, and when assembled, the cumulative Z-height can be adjusted while maintaining alignment through the consistent interface design between modules.
Solution Approach 2:
The system allows changing the Z-height parameter by adding or removing modular frame sections. The alignment is maintained through standardized geometric interfaces and self-aligning features that ensure proper positioning regardless of the total Z-height configuration.
4Manufacturing precision
If vibration dampers and additional alignment features are added to improve precision and isolation, then manufacturing precision is improved, but ease of assembly deteriorates
Solution Approach 1:
The frame is segmented into pre-assembled modular units (z-stage frame, damper frame, mounts) that come with integrated alignment and damping features. This segmentation allows complex precision features to be built into individual modules during manufacturing, simplifying the final assembly process while maintaining high precision.
Solution Approach 2:
The modular components are designed with self-aligning features and intuitive connection mechanisms that guide proper assembly without requiring complex tooling or specialized skills. The dampers and alignment features are pre-positioned on components, allowing them to self-adjust during assembly to achieve proper positioning.
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
The modular frame reduces vibration transmission, simplifies alignment and assembly, and allows for flexible build heights, improving overall performance and accuracy while maintaining relatively low system costs.
Implementation Method 1
a damper arranged between the z-stage frame and the damper frame
Data Source
AI summary
A modular three-dimensional printer frame including a z-stage frame adapted to support a build platform, a damper frame connected to the z-stage frame adapted to support a print head, a mount arranged between the z-stage frame and the damper frame, and a damper arranged between the z-stage frame and the damper frame. The damper frame is mounted to the z-stage frame by arranging a first damper between a damper frame to a z-stage frame; arranging a first mount between the damper frame and the z-stage frame; and aligning the damper frame and the z-stage frame with the first mount.