3D Printer Control System for Contouring Artifact Prediction
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Solution Overview
Problem
3D printing systems face challenges in producing high-quality, fast relief or 3D prints with visible contouring artifacts due to height variations and material deposition issues, leading to stair case or contouring effects that are time-consuming and costly to address.
Innovation Solution
A printer control system with an analysis section to predict contouring artifacts and a transformation section to visualize them in the preview image, allowing designers to adjust the design or select a print strategy that minimizes these artifacts by identifying pause moments and adjusting pixel heights and material deposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If multiple pass images are printed on top of each other to create 2.5D or 3D structures, then the height and complexity of the printed object is improved, but visible contouring artifacts and stair case effects increase
Solution Approach 1:
The system performs preliminary analysis of the relief image before printing to predict locations where contouring artifacts will occur. The analysis section examines the relief image and identifies potential contouring areas in advance, allowing the transformation section to pre-calculate and apply contour representations to the preview image, enabling designers to adjust designs before actual printing begins.
Solution Approach 2:
The system provides feedback by generating a preview image that includes predicted contour representations, allowing designers to see before printing what contouring artifacts will occur. This feedback mechanism enables iterative design adjustments to minimize visible contours while maintaining the desired 3D structure height.
2Productivity
If the printing process is made faster by using fewer passes, then productivity is improved, but the surface quality and visual quality of the printed object deteriorates
Solution Approach 1:
The analysis section performs preliminary examination of the relief image to identify contouring risk areas before printing begins. This allows the system to optimize the printing strategy in advance by determining which areas require special attention or additional passes, enabling faster printing in low-risk areas while maintaining quality where needed.
Solution Approach 2:
The system applies different printing strategies to different areas of the object based on the analysis. Areas with high contouring risk receive specialized handling or additional passes, while areas less prone to contouring can be printed more quickly, optimizing the balance between overall printing speed and surface quality.
3Ease of operation
If contouring artifacts are detected and visualized in the preview image, then the ability to adjust design before printing is improved, but the complexity of the printing system increases
Solution Approach 1:
The printing control system is segmented into distinct functional sections: an analysis section that processes the relief image to identify contouring risks, a transformation section that converts the analysis results into visual representations, and a preview generation section that combines these elements. This segmentation allows each component to perform its specific function efficiently while keeping the overall system architecture manageable.
Solution Approach 2:
The transformation section acts as an intermediary between the relief image analysis and the preview image generation. It processes the analysis results and converts them into appropriate visual representations that can be displayed to designers, simplifying the interaction between the complex analysis functions and the user interface.
Data Source
AI summary
The present invention relates to a printer control system and a method for controlling the printing of an object on a support in a number of pass images on top of each other. The object has a surface of varying height. The printer control system comprises a user interface having a display device and arranged to visualize in a window on the display device a preview image before printing of the object. The preview image comprises a representation of the surface of the object. The printer control system further comprises an analysis section which is configured to analyze the pass images in order to predict before printing the object a location of a contouring artefact at the surface of the object, and a transformation section which is configured to transform the predicted location into a contour representation to be added to the preview image. The contour representation is visually distinguishable from the representation of the surface of the object in the preview image.