3D Printing Nozzle Acute Angle and Movable Head
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Solution Overview
Problem
Existing 3D printing devices have limited working space and restricted freedom of manipulation of the printing head, which can impact the geometry of printed 3D products and make maintenance difficult.
Innovation Solution
A 3D printing device with a movable printing head and a frame oriented in a plane parallel to the print surface, allowing the printing head to move along this plane and vertically, combined with a printing nozzle arranged at an acute internal angle to avoid the creation of islands and improve printing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a non-movable print surface is used, then the device structure is simple, but the working space is limited and freedom of manipulation is restricted
Solution Approach 1:
The patent applies the dynamics principle by making the print surface movable instead of fixed. The print surface can move in the first direction (parallel to its surface) and the printing head can move in the second direction (substantially perpendicular to the print surface), allowing dynamic adjustment of the working space and improving freedom of manipulation while maintaining reasonable device structure.
2Ease of repair
If the printing head is positioned within the XY-gantry, then the device structure is compact, but maintenance becomes difficult due to restricted physical access
Solution Approach 1:
The patent segments the movement functions by separating the print surface movement (in the first direction) from the printing head movement (in the second direction). This segmentation allows the printing head to be positioned in a more accessible location while maintaining a compact overall structure, improving maintenance accessibility without sacrificing working space.
3Manufacturing precision
If the printing nozzle extends perpendicular to the print surface, then the dosing mechanism is simple, but islands are created affecting print quality
Solution Approach 1:
The patent applies asymmetry by arranging the printing nozzle to extend at an angle different from perpendicular to the print surface. This asymmetric arrangement prevents the formation of islands during printing, improving print quality and geometric accuracy while the dosing mechanism remains fundamentally simple.
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 provides greater freedom of manipulation for the printing head, enabling the creation of complex geometries and reducing the need for additional support structures, while also simplifying maintenance and improving print quality and efficiency.
Implementation Method 1
the printing nozzle is arranged to extend at an acute internal angle measured between the print surface and the dosing direction
Data Source
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AI summary
A three-dimensional printing device for printing one or more three-dimensional products. The 3D printing device comprises a print surface configured to support the printing of the one or more 3D products, a frame arranged at a distance above the print surface, wherein the frame is oriented in a first plane substantially parallel to the print surface, a printing head comprising a printing nozzle configured for dosing the build material on the print surface or on a previous layer in a dosing direction to print the one or more 3D products in a series of layers, wherein the printing nozzle is arranged to extend at an acute internal angle measured between the print surface and the dosing direction, and wherein the printing head is movably coupled to the frame such that the printing head is movable along the first plane with respect to the print surface and wherein the print head is movable in a vertical direction with respect to the print surface, a controller configured to control a movement of the printing head along the first plane and/or in the vertical direction.