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We are experiencing runout while rotating the lathe.  How do you handle getting the runout under control?



While rotating the lathe at approximately 40-50 RPM the rotary seal extension tube should have only a small amount of runout to prevent seal movement, possible connection leakage, and potential tube cracking. If there is significant runout, the handle should be straightened before proceeding with the setup. Failure to correct this can cause issues during the deposition process potentially leading to a lost fabrication attempt.

Update: We have sections on Loading the tube onto the lathe, Initial deposition tube straightening and The final tube straightening/stress relieving process in our blog, Preparing to Manufacture an Optical Fiber Preform.


  Answered by AskFOC Technical Team October 4, 2017


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Kathleen Skelton, Director of Strategic Marketing's experience includes management positions at Lightwave, KMI Research, PennWell Publishing, Beacon Communications, and Security Innovations, Inc. As a strategic marketing director, she utilizes her expertise in business development, online strategy, marketing planning, digital best practices, standard operating procedures development, and database design, management and training. Kathleen has global business and marketing experience. Outside of FOC, Kathleen is passionate about her volunteer work for several organizations and works with youth groups teaching business strategy for various community projects. In her volunteer work, Kathleen is committed to developing tomorrow's leaders through exciting, strategy-focused business education. This mission guides all of her work outside of the corporate office. Kathleen graduated from Curry College with a BA in Communications and Education and minors in English and Psychology. Kathleen resides outside of Boston, MA with her husband and four children. Follow @KATHLEENSKELTON