3D Printing Print Head Offset Strategy for Construction Time Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 3D printing methods are inefficient and costly due to the need for multiple axes and complex movements, which increase construction time and machine wear, while also complicating the process of maintaining print head cleanliness and accessibility.
Innovation Solution
A method and device where the print head has a width approximately half the construction field length, allowing for simpler and faster printing by moving in one direction over the short side of the construction area, with a coater moving simultaneously and a cleaning station at the reversal position for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a print head with width corresponding to half the construction field length is used, then the construction time is reduced and device complexity is simplified, but the print head must move back and forth more frequently
Solution Approach 1:
The construction field is divided into two separate printing zones, each handled by the print head in independent printing runs. This segmentation allows the print head to cover half the construction field width in each pass, reducing the total travel distance and time compared to printing the entire width in single long passes, while maintaining complete coverage through multiple targeted runs
2Manufacturing precision
If the print head moves in one direction only, then printing precision is improved, but the construction time increases due to empty return runs
Solution Approach 1:
Instead of having the print head traverse the entire construction field width in single long passes (which would maintain precision but increase time), the approach is inverted: the print head covers only half the width in each pass and systematically returns to print the remaining half. This inversion of the traditional printing pattern reduces total travel distance while the systematic approach to covering both halves maintains printing precision
3Ease of repair
If a cleaning station is positioned at the reversal position, then maintenance accessibility is improved, but the device structure becomes more complex
Solution Approach 1:
The cleaning station functionality is merged with the existing reversal position structure of the print head mechanism. By combining the cleaning station with the reversal position, the patent utilizes an already-necessary structural element (the reversal position where the print head changes direction) to also serve as the cleaning location, thereby improving maintenance accessibility without adding separate independent structural components
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 reduces construction time, minimizes machine wear, and simplifies the device structure, enabling faster and more cost-effective 3D model production with improved print head accessibility and reduced maintenance needs.
Implementation Method 1
fluid building material is applied to a building field
Implementation Method 2
binder material is applied selectively to the building material using a printer
Implementation Method 3
This object, made of solidified particulate material, is embedded in loose particulate material after its completion and is then freed from it
Data Source
AI summary
The invention relates to a method for producing three-dimensional models by means of a layering technique, wherein fluid construction material is applied to a construction field and then binder material is selectively applied to the construction material by means of a printer, wherein, after the fluid construction material has been applied, a first part of the length of the construction field (10) is substantially printed in a first movement of a printing head (20), which has a printing width that is smaller than the length of the construction field (10), across the construction field (10), and the printing head (20) is offset and a second part of the length of the construction field (10) is substantially printed in a second movement of the printing head (20) across the construction field (10).