3D Printing Roller Leveling for Excess Material Removal
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Solution Overview
Problem
Existing three-dimensional printing systems face challenges in efficiently leveling and managing excess building material during the layerwise fabrication process, which can affect the quality and consistency of the printed objects.
Innovation Solution
A leveling system comprising a rotatable roller, motor, waste collecting bath, blade, and tubular structures with a pump system, along with sensors for monitoring and controlling the roller's rotation and bath's placement, is introduced to manage excess material effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a traditional leveling device is used to remove excess building material, then the leveling function is provided, but the system complexity increases and maintenance difficulty increases
Solution Approach 1:
The patent extracts the leveling function from a complex mechanical device and implements it using a simple rotating roller. The roller collects excess material through rotation and deposits it into a waste bath, eliminating the need for complex mechanical leveling mechanisms while maintaining effective leveling capability.
Solution Approach 2:
The roller performs self-leveling through its rotation mechanism. As the roller rotates and contacts the deposited material layer, it automatically collects excess material and transfers it to the waste bath, providing a self-service leveling function without requiring complex control systems or additional mechanical components.
2Manufacturing precision
If excess building material is not efficiently removed, then the leveling process is simplified, but the quality and consistency of printed objects deteriorates
Solution Approach 1:
The roller rotates continuously during the material deposition process, maintaining constant contact with the deposited layer and continuously collecting excess material. This continuous action ensures consistent layer thickness throughout the printing process while efficiently removing excess material without interrupting the deposition workflow.
Solution Approach 2:
The waste bath serves as an intermediary receptacle that receives excess material from the roller. This intermediary structure allows the roller to deposit collected material without direct mechanical interaction with the waste collection system, simplifying the overall mechanism while maintaining effective material removal and enabling easy maintenance.
3Productivity
If a complex waste collection system is used, then excess material is efficiently managed, but the ease of maintenance deteriorates
Solution Approach 1:
The waste collection system is segmented into distinct functional components: the roller, the waste bath, and the support structure. This segmentation allows each component to be independently accessed, removed, and maintained. The roller can be easily detached for cleaning, and the waste bath can be separately emptied or replaced without disassembling the entire leveling system.
Solution Approach 2:
The waste bath is designed as a simple, easily replaceable component that can be discarded or replaced when worn or contaminated. This approach prioritizes ease of maintenance over long-term durability, allowing rapid replacement rather than complex repair procedures. The simple construction of the bath makes it economically viable to replace rather than refurbish.
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 system ensures precise leveling and efficient removal of excess material, enhancing the quality and consistency of three-dimensional printed objects by maintaining optimal layer thickness and material distribution.
Implementation Method 1
A leveling system for a three-dimensional printing system... a rotatable roller... a waste collecting bath... for removing at least a portion of the excess liquid building material
Implementation Method 2
a blade for removing liquid waste from the roller into the bath
Implementation Method 3
Each tubular structure has an inlet at a vicinity of a base of the bath and an outlet connectable to a pump system
Implementation Method 4
the magnetic sensor comprises a Hall-effect sensor
Data Source
AI summary
A leveling system for a three-dimensional printing system, comprises a rotatable roller, a waste collecting bath, a blade for removing liquid waste from the roller into the bath, and a plurality of tubular structures. Each tubular structure has an inlet at a vicinity of a base of the bath and an outlet connectable to a pump system.