Rotatable Build Platform for 3D Printing Warping Control
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Solution Overview
Problem
Existing three-dimensional printing technologies face challenges in achieving precise and efficient object creation due to limitations in build platform movement and inertia management, leading to issues like warping and reduced resolution.
Innovation Solution
A three-dimensional printer with a rotatable and slideable build platform, driven by precision motors and linear actuators, utilizes a polar coordinate system for optimized movement and inertia-based current adjustment to ensure accurate and even material deposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed build platform is used, then the device structure is simple, but the cooling uniformity and print quality deteriorate due to warping issues
Solution Approach 1:
The build platform is transformed from a fixed structure to a dynamic system that can rotate about the z-axis and translate along the x-axis. This dynamic capability allows the platform to adjust its orientation and position during the printing process, enabling uniform cooling of deposited materials from multiple directions and preventing warping issues that occur with fixed platforms.
Solution Approach 2:
The invention adds rotational and translational degrees of freedom to the build platform, moving from a static two-dimensional printing surface to a three-dimensional adjustable platform. This dimensional enhancement allows materials to be cooled uniformly from different spatial angles, significantly improving print quality by eliminating warping caused by uneven cooling.
2Manufacturing precision
If the build platform is made rotatable and slideable, then the cooling uniformity improves, but the device complexity increases
Solution Approach 1:
The build platform is designed to perform multiple functions: it serves as both the printing surface and the rotating/translating mechanism carrier. The platform integrates the rotation about the z-axis and translation along the x-axis capabilities into a single unified structure, reducing overall device complexity while achieving uniform cooling through multi-directional material deposition.
3Measurement precision
If motor current is increased for precise positioning, then the positioning accuracy improves, but the heat buildup and noise increase
Solution Approach 1:
The system incorporates feedback mechanisms where the controller monitors the positioning requirements and dynamically adjusts motor current levels. By calculating inertia at different stages of the printing process and adjusting current accordingly, the system achieves precise object placement accuracy while minimizing unnecessary current consumption, thereby reducing heat buildup and noise generation from the motors.
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 solution enhances print quality by preventing warping and maintaining high resolution through precise control of the build platform's rotation and translation, allowing for more even cooling and shrinking of materials like ABS and PLA, resulting in higher quality finished products.
Implementation Method 1
heated build platform to maintain even cooling and prevent warping
Implementation Method 2
prevent warping due to uneven shrinking of extruded plastics
Implementation Method 3
precision motors and drivers, allowing for controlled rotation and movement in the x-direction
Implementation Method 4
optimized motor current adjustments based on inertia calculations for precise object placement
Data Source
AI summary
A method for printing a three dimensional object comprising providing a support structure, rotating a build platform having a center and disposed on the support structure, slideably moving the build platform disposed on the support structure, and printing an object on the build platform with a print head.