3D Printing Guide Leg Cleaning for Smooth Layered Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing additive manufacturing methods for constructing components and structures, such as 3D concrete printing, face challenges in achieving smooth lateral surfaces due to irregularities from layering, material adherence, and undesirable surface formations, which require complex post-processing or additional smoothing mechanisms.
Innovation Solution
A device with a material dispensing unit and an actuator assembly, equipped with guide legs driven by actuators, allows for precise movement and surface shaping, including smoothing and cleaning, to form smooth surfaces without additional smoothing tools, and enables switching between smoothing modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If guide legs are used to form building material layers, then manufacturing precision is improved, but building material residues accumulate on the guide legs
Solution Approach 1:
The cleaning arrangement performs preliminary cleaning of the guide legs before they return to form the next layer, preventing residue accumulation that would compromise subsequent layer precision. The cleaning action is executed in advance during the guide leg's repositioning movement, ensuring the guide leg is ready for the next precise layer formation operation.
2Adaptability or versatility
If guide legs move relative to the material dispensing unit, then adaptability is improved, but contamination of the material dispensing unit increases
Solution Approach 1:
The cleaning arrangement acts as an intermediary between the guide legs and the material dispensing unit, capturing and removing building material residues before they can contaminate the material dispensing unit. This intermediary cleaning function enables the guide legs to move freely for adaptability while protecting the material dispensing unit from contamination.
3Productivity
If cleaning is performed during guide leg movement, then productivity is improved, but device complexity increases
Solution Approach 1:
The cleaning arrangement is merged with the existing guide leg mechanism, utilizing the guide leg's inherent movement between layers to perform cleaning operations. The cleaning function is integrated into the guide leg's existing trajectory and timing, eliminating the need for separate dedicated cleaning movements and reducing overall system complexity while maintaining high productivity.
Data Source
Figure 1~2
Figure 3a~4
Figure 3b~3c
AI summary
The invention relates to a device (3) for the additive manufacturing of a component (2), comprising a material dispensing unit (4) for depositing a building material and an actuator assembly (5) configured to move the material dispensing unit (4) over a work surface (6) in order to deposit the building material layer by layer in predetermined pressure paths (D). The device has at least one first guide leg configured to form a first surface of the one or more layers of building material deposited by the material dispensing unit (4), wherein the at least one first guide leg is driven by an actuator and is movable in at least one translational or rotational degree of freedom relative to the material dispensing unit (4).According to the invention, the device has a cleaning arrangement for cleaning the at least one first guide leg of building material residues during a relative movement of the at least one first guide leg relative to the material dispensing unit (4).