3D on machine metrology for conformal printing of conductors and dielectrics onto complex 3D surfaces

Rajesh Ramamurthy; Harry Chiu; Kevin Harding; Robert Tait

doi:10.1117/12.2518629

13 May 2019 3D on machine metrology for conformal printing of conductors and dielectrics onto complex 3D surfaces

Rajesh Ramamurthy, Harry Chiu, Kevin Harding, Robert Tait

Proceedings Volume 10991, Dimensional Optical Metrology and Inspection for Practical Applications VIII; 109910S (2019) https://doi.org/10.1117/12.2518629
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

This report evaluates some of the challenges faced with 2D camera based on-machine metrology and potential options with using 3D sensors for such Direct Write applications. Specifically, in order to fully exploit 3D direct write technology to surfaces in excess of 45 degree to the print direction, non-planar motion employing 4th and 5th rotary axes are often necessary. This report will outline a procedure for doing high accuracy rotary axis calibration. Furthermore, the use of online metrology solution to enable tuning of the rotary axis as well as for online print characterization will be detailed. These efforts will provide a fresh impetus to the use of 3D sensors for on-machine monitoring applications in additive manufacturing.

Conference Presentation

Citation Download Citation

Rajesh Ramamurthy, Harry Chiu, Kevin Harding, and Robert Tait "3D on machine metrology for conformal printing of conductors and dielectrics onto complex 3D surfaces", Proc. SPIE 10991, Dimensional Optical Metrology and Inspection for Practical Applications VIII, 109910S (13 May 2019); https://doi.org/10.1117/12.2518629

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