Grooved Filament Guide with Transparent Plate for Additive Manufacturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In additive manufacturing, thermoplastic filaments with carbon fibers face challenges in being accurately guided to deposition points, leading to potential movement away from intended paths due to excessive heating, which affects the build quality of complex geometries.
Innovation Solution
A filament guide system with a groove and notch configuration, combined with a heat-transparent plate, ensures precise guidance and heating of the filament, minimizing lateral drift and maintaining the filament's alignment during deposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the filament is exposed to the heat source for sufficient heating, then the thermoplastic is properly heated for deposition, but the filament travels unrestricted over a significant distance from the heated portion to the roller, affecting build quality
Solution Approach 1:
The guide member is divided into multiple functional segments: a first portion that guides the filament from the heat source, a second portion that guides the filament to the roller, and a notch that directs the heated filament. This segmentation allows each portion to be optimized for its specific function while maintaining overall precision.
Solution Approach 2:
The guide member acts as an intermediary structure between the heat source and the roller. It provides a controlled path for the filament, preventing unrestricted travel while allowing proper heating. The guide member mediates the transition from the heated zone to the deposition zone.
2Temperature
If the filament is heated excessively to ensure proper deposition, then the thermoplastic is sufficiently melted, but the filament moves away from the intended path due to lack of guidance
Solution Approach 1:
Different portions of the guide member have different geometric characteristics optimized for their local functions. The first portion has a configuration for receiving filament from the heat source, the second portion for guiding to the roller, and the notch for directing heated filament. This local optimization ensures both heating and precision guidance.
3Manufacturing precision
If a structure is added to guide the filament precisely, then filament positioning is improved, but the device complexity increases
Solution Approach 1:
The guide member combines multiple functions into a single integrated component: guiding the filament from the heat source, directing it through a controlled path, and channeling it to the roller. The notch is integrated into the guide member structure, eliminating the need for separate guiding components and reducing overall device complexity.
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 solution effectively heats the thermoplastic while maintaining precise filament guidance, reducing movement errors and enhancing the build quality of complex geometries in additive manufacturing.
Implementation Method 1
a heat source configured to heat the filament
Implementation Method 2
a plate that is substantially transparent to the electromagnetic radiation that is emitted by a heat source
Data Source
AI summary
A filament guide that guides thermoplastic filament to an object being manufactured. A deposition head comprising the disclosed filament guide provides a filament to the intended deposition point. The filament guide comprises a guide member having a filament groove configured to guide the filament along a path of travel. The groove has an upstream end that is configured to receive the filament from a source and a downstream end that is configured to direct the filament toward the deposition point in the intended direction. A notch at the downstream end of the guide member enables the filament to travel toward the deposition point. The portions of the guide member on either side of the notch act to keep the filament centered laterally. A plate that is transparent to electromagnetic radiation from a heat source covers the groove and permits the electromagnetic radiation to reach the filament while providing added support.