Multi-Head 3D Printer Carriage Synchronization
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Solution Overview
Problem
Existing 3D printing technologies face limitations in speed and scalability, as the production time increases with the desired accuracy and size of the object due to the sequential layering process, which results in impractical production times for both small and large volumes of identical products.
Innovation Solution
A device with multiple synchronized printing heads that move in tandem, allowing for simultaneous creation of identical objects, with each head covering a part of the support surface, and a carriage system that enables efficient movement and layer formation, reducing production time by allowing multiple objects or larger objects to be printed in a single run.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single printing head is used to print three dimensional objects, then the device complexity is low, but the productivity is low because production time increases with the number of objects desired
Solution Approach 1:
The patent combines multiple printing heads (at least two) onto a single carriage system, allowing them to operate simultaneously on the same support surface. This merging approach enables multiple objects to be printed in parallel during a single production run, directly addressing the productivity limitation of single-head systems without requiring multiple separate printers
Solution Approach 2:
The patent arranges printing heads in a spatial configuration along the carriage, utilizing the linear dimension of the carriage travel to distribute multiple printing positions. This dimensional arrangement allows simultaneous printing at different locations along the support surface, effectively increasing throughput without adding vertical or horizontal complexity beyond the carriage framework
2Area of stationary object
If the stroke of the carriage is made large to cover the full support surface, then the printing area is increased, but the production time increases with the power of two due to larger surface coverage
Solution Approach 1:
The patent segments the support surface into multiple zones, with each printing head responsible for a specific segment or portion of the total area. By distributing the printing workload across multiple heads operating in parallel on different segments, the total printing time is reduced compared to a single head traversing the entire surface sequentially
Solution Approach 2:
The patent employs more printing heads than the minimum required to cover the support surface, creating an excessive action scenario where the combined capability of all printing heads exceeds the actual printing needs. This allows for optimized carriage stroke distances, as the system can achieve full surface coverage with shorter individual head travels by operating in parallel
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 approach significantly reduces production time for multiple identical objects and enables faster creation of larger objects by distributing the workload across multiple printing heads, improving both speed and scalability while maintaining high accuracy.
Implementation Method 1
each printing head comprises a first extrusion nozzle for selectively extruding a first plastic
Implementation Method 2
heating this layer with a laser beam, such that a two dimensional layer is created of cured fluid or melted granular material
Data Source
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AI summary
Device for printing simultaneously three dimensional objects, which device comprises: - a support surface for supporting the object to be printed; - a carriage arranged over the support surface, which carriage is movable along two axes of a Cartesian coordinate system parallel to the support surface and wherein the distance between the carriage and the support surface is adjustable; - a number of printing heads arranged at the carriage, wherein the printing heads are positioned at a regular first pitch distance along the first axis of the Cartesian coordinate system and at a regular second pitch distance along the second axis of the Cartesian coordinate system.