Modular 3D Printing Device Tool-Free Maintenance
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Solution Overview
Problem
Laser sintering devices face challenges with maintenance and cleaning due to contamination and damage of components over time, requiring significant downtime and resources.
Innovation Solution
The device is designed with components that can be easily removed and replaced without tools, featuring a modular structure for quick maintenance and cleaning, including a tripod frame for stability and adjustable optics for efficient alignment and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If components are arranged in the installation space, then the device can function, but cleaning and maintenance time increases
Solution Approach 1:
The device is divided into modular components (coater, container, workpiece platform) that can be independently removed and cleaned. This segmentation allows maintenance of individual parts without disassembling the entire device, reducing maintenance time while preserving functionality.
Solution Approach 2:
Components such as the coater and container are designed to be easily extractable from the installation space. This extraction capability enables quick removal for cleaning purposes and rapid reinstallation, minimizing downtime while maintaining device operational integrity.
2Loss of time
If components are made removable for easy cleaning, then maintenance time decreases, but device complexity increases
Solution Approach 1:
The device incorporates dynamic elements such as movable coater mechanisms and interchangeable containers that can be easily positioned and secured. These dynamic features enable quick component removal and reinstallation without complex fastening systems, reducing maintenance time while keeping the added complexity manageable.
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 design reduces maintenance and cleaning time, saving costs and ensuring the device remains operational for construction processes with minimal downtime.
Implementation Method 1
A powdered build material is heated locally at the selected points by means of a laser beam
Implementation Method 2
heated locally at the selected points by means of a laser beam, so that it is connected to neighboring components of the building material by sintering or melting
Implementation Method 3
heated locally at the selected points by means of a laser beam, so that it is connected to neighboring components of the building material by sintering or melting
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
The invention relates to a device (1) for building up a three-dimensional object by compacting layer by layer a building material in the locations in the respective layers that correspond to the object. Said device comprises a machine frame (2, 3, 4, 5) and a construction site (10) arranged inside said machine frame. The construction site (10) accommodates: a coating device (27) which applies layers of the building material onto a support device (26) or onto a previously compacted layer by means of a coating element (61); a metering device (28, 29) that provides building material for the coating device (27) for application, and a heating device (31) for heating the applied layers of building material. The coating element (61) and/or the metering device (28, 29) and/or the heating device (31) can be removed from the construction site (10) without using tools.