3D Printing Platform Leveling With Sensor-Guided Post Adjustment
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Solution Overview
Problem
Conventional 3-D printing platform leveling methods are either error-prone, requiring high user interaction and skill, or they fail to maintain a level state during the printing process, leading to inaccuracies and inefficiencies, especially in applications where precision is critical.
Innovation Solution
A friction fit, spring-loaded platform with a sensor-based leveling system and a two-point leveling system that allows for simultaneous adjustment of multiple posts, providing feedback to ensure an objective and precise level state, and a method using a ball and socket arrangement to achieve a level state by adjusting at least two other posts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional error correction techniques are used to compensate for a non-level build platform, then the printing process can continue without manual intervention, but the base of the resulting 3-D object is not entirely flat and offset errors are propagated vertically throughout the entire printed object
Solution Approach 1:
The build platform performs its own leveling by physically adjusting its support posts based on sensor feedback, eliminating the need for external error correction methods. The platform self-corrects its non-level state by mechanically extending or retracting posts to achieve a truly level surface, rather than attempting to compensate for the error through code alterations.
Solution Approach 2:
The patent replaces conventional mechanical manual leveling (hand-turning knobs) and software error correction with an automated electromechanical system. Sensors detect the build platform's levelness and automatically control post adjustment mechanisms, substituting human operation and software compensation with an integrated sensing-actuating system.
2Manufacturing precision
If manual leveling techniques are used with high user interaction, then the build platform can be leveled, but the process requires high user skill and interaction
Solution Approach 1:
The build platform performs its own leveling by physically adjusting its support posts based on sensor feedback, eliminating the need for external error correction methods. The platform self-corrects its non-level state by mechanically extending or retracting posts to achieve a truly level surface, rather than attempting to compensate for the error through code alterations.
Solution Approach 2:
A sensor continuously monitors the build platform's levelness and provides feedback to an control system. Based on this feedback, the system automatically adjusts the height of support posts by extending or retracting them, creating a closed-loop control system that achieves precise leveling without user intervention.
3Productivity
If the build platform is not maintained at a level state during printing, then the printing process is simpler, but inaccuracies occur in the printed object
Solution Approach 1:
A sensor continuously monitors the build platform's levelness throughout the printing process and provides feedback to a control system. When the platform deviates from a level state due to ink deposits or other factors, the system automatically adjusts support post heights to restore levelness, maintaining printing accuracy without interrupting the process.
Solution Approach 2:
The build platform transitions from a static structure to a dynamic system with actively adjustable support posts. The posts can extend or retract in real-time to compensate for changes in platform levelness caused by ink deposits, material accumulation, or thermal expansion, maintaining a consistently level surface throughout the printing process.
4Reliability
If access to all sides of the build platform is restricted by a single access door, then the build cage is more secure, but adjustment of rear side posts becomes particularly challenging
Solution Approach 1:
The build platform performs its own leveling by physically adjusting its support posts based on sensor feedback, eliminating the need for external error correction methods. The platform self-corrects its non-level state by mechanically extending or retracting posts to achieve a truly level surface, rather than attempting to compensate for the error through code alterations.
Solution Approach 2:
The patent replaces conventional mechanical manual leveling (hand-turning knobs) and software error correction with an automated electromechanical system. Sensors detect the build platform's levelness and automatically control post adjustment mechanisms, substituting human operation and software compensation with an integrated sensing-actuating system.
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 reduces user interaction, ensures highly accurate build results regardless of user skill level, maintains a level state throughout the printing process, and facilitates easier access and adjustment within the build cage, enhancing the reliability of 3-D printing accuracy.
Implementation Method 1
A friction fit, spring-loaded platform with a sensor-based leveling system
Data Source
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AI summary
An adjustable level 3-D printing platform includes a platform (302), three support posts, and an adjusting component (304) by which heights of the three support posts are adjustable. The bottom of the build platform includes at least one socket to engage with a ball end of one of the three support posts, thereby enabling two point leveling. The adjusting component is configured to simultaneously adjust a height of the at least three support posts using a first arm (318) and a second arm (320), each connected to the build platform at respective pivot points (332, 334) and configured to apply respective clamping forces to the support posts. The printing platform further includes at least one sensor leveling system that deploys a probe, measures a relative probe state, and compares the measurement to a predetermined value. During the leveling processes, the 3-D printer is configured to provide sensory feedback.