3D Shaping Nozzle Scratch Measurement for Positional Deviation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing three-dimensional shaping devices face challenges in accurately laminating materials on a target region due to positional deviations of the nozzle on the shaping surface, which affects the precision and accuracy of the shaping process.
Innovation Solution
A three-dimensional shaping device equipped with a dispensing unit, a stage, a position changing unit, and a control unit that includes a measurement module to measure the difference between the nozzle's assumed and actual positions on the shaping surface, allowing for precise correction of positional deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the nozzle height is adjusted to a predetermined distance from the stage, then shaping accuracy is improved, but positional deviation of the nozzle in the shaping surface cannot be detected
Solution Approach 1:
A scratch-forming target member is introduced as an intermediary element on the stage surface. This target member provides a reference surface for the nozzle to form scratches, which then serve as measurable markers for detecting positional deviation. The intermediary target member enables the measurement function without interfering with the primary shaping operation.
Solution Approach 2:
The nozzle's positional information is copied onto the target member through scratch formation. Instead of directly measuring the nozzle's position, the system creates a physical copy (scratch) of the nozzle's position on the target member, which can then be measured by imaging devices. This indirect copying approach enables precise positional deviation detection.
2Ease of operation
If the nozzle position is not corrected, then the device operation is simple, but material lamination on the target region becomes inaccurate
Solution Approach 1:
The system implements a feedback loop where the nozzle's actual position is measured via scratches on the target member, compared to the intended position, and correction values are generated. This feedback mechanism automatically adjusts for positional deviations, maintaining high lamination accuracy without complicating the overall operation. The correction process is seamlessly integrated into the existing control system.
Data Source
AI summary
A three-dimensional shaping device includes: a dispensing unit including a nozzle; a stage having a shaping surface on which a shaping material is to be laminated; a position changing unit configured to change a relative position between the nozzle and the stage; a control unit configured to control the position changing unit; and a measurement module used to measure a difference of the nozzle from a reference position in the shaping surface based on a first position of the nozzle in the shaping surface and a second position of the nozzle in the shaping surface. The first position is a position in which the nozzle is assumed to be positioned by the control unit controlling the position changing unit. The second position is a position changed by the control unit controlling the position changing unit.