3D Printing Device Zone Parameter Control

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Solution Overview

Problem

Current additive manufacturing methods are limited to producing one product at a time, leading to increased manufacturing time and costs, and lack flexibility in producing geometrically complex and large products with varying properties.

Innovation Solution

A method and device for controlling process parameters in a 3D printing device to partition a virtual printing volume into zones with different parameters, allowing multiple 3D products with varying properties to be manufactured in a single batch, enabling flexible production of products with different resolutions, densities, and materials within the same batch.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple products are manufactured in one batch, then productivity is improved, but device complexity increases due to need for parameter partitioning and control

Engineering Contradiction:
Improvemanufacturing throughputVSAvoidparameter control system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The printing volume is divided into multiple zones with different process parameters. Each zone can have independent control of process parameters such as layer thickness, printing speed, and material properties, allowing simultaneous production of multiple products with different requirements in a single batch

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts process parameters based on the zone in which the print head is currently operating. The control system modifies parameters in real-time according to the spatial position and assigned zone, enabling flexible multi-parameter control without requiring multiple fixed printing systems

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If different process parameters are applied to different products, then adaptability is improved, but manufacturing precision may worsen due to parameter variations

Engineering Contradiction:
Improveproduct property variation capabilityVSAvoiddimensional accuracy consistency
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

Different regions of the printing volume are assigned different process parameters tailored to the specific requirements of products in those regions. This allows each product to receive optimized parameters for its specific geometry and material requirements while maintaining overall batch production

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system changes process parameters such as layer thickness, printing speed, and temperature based on the zone and product being manufactured. This enables adaptation to different product requirements while the control system maintains precision through coordinated parameter adjustment across all active zones

Inventive Principle:
Principle #35Parameter changes

3Loss of time

If continuous products with no distinct layers are printed, then manufacturing time is reduced, but the ability to manufacture geometrically complex products worsens

Engineering Contradiction:
Improvemanufacturing cycle timeVSAvoidgeometric complexity capability
Core Design Contradiction:
Loss of timeVSShape

Solution Approach 1:

The system uses continuous printing where possible to reduce manufacturing time, but selectively introduces layer boundaries and pause-resume operations only where geometric complexity requires it. This partial application of continuous printing maintains speed benefits while preserving geometric capability

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP3565714B1A method for printing a 3D product and a 3D printing device
Publication Date: 2020.10.21 L3F SWEDEN
  • EP3565714B1 patent drawingFigure 1a~1b
  • EP3565714B1 patent drawingFigure 2
  • EP3565714B1 patent drawingFigure 3

AI summary

The present disclosure relates to a method for controlling the manufacturing of one or more 3D products in one batch by additive manufacturing using a layer-by-layer technique using a 3D printing device, and a 3D printing device. The 3D printing device comprises a control unit adapted to govern a plurality of process parameters, the batch having a 3D printing volume. The method comprises the steps of; providing a virtual 3D printing volume (40) representative of the 3D printing volume (PV) of the batch; partitioning the virtual 3D printing volume (40) into at least a first and a second zone (50a-50h) and; assigning the first zone (50a-50h) with a first process parameter, and the second zone (50b-50h) with a second process parameters, whereby the first process parameter is different with respect to the second process parameter.