Overview

While at Bose, I earned the Bose Lean Yellow Belt certification by completing training as well as completing a final project. My project objective was to develop a test procedure to evaluate the amount of ear wax mitigation of in-ear products. Due to confidentiality, I can not share the full presentation as well as specifics of the procedure.

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Fixture Work

This project was open ended and came with complicated problems. I was in charge of keeping the project on schedule and in scope with a final outcome. I ultimately came up with two test fixtures for a product to go through. Both fixtures required CAD work, one with a 3D printed enclosure to hold an earbud and the other was silicone molded seat to hold an earbud in place while completing acoustic testing on it.

 

The CAD that I can show is an anthropometric ear that I created in NX to be a solid body. This was then 3D printed and molded with a material similar to human skin. This was one of the most advanced surfacing assignments that greatly improved my CAD skills.

 

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Takeaways

Throughout this Yellow Belt project I learned how to create and run gage R&R procedures as well as protocol procedures and documentation. I also created a measurement system to determine the amount and location of the ear wax getting in earbuds. This project was a huge take on in terms of project management in terms of scheduling and creating target conditions in a 6 month time frame. This project implemented a system and procedure that will help the company long term with future in-ear products.