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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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Resharpening Bandsaw Blades and Band Tension - Informal Poll
Hello to the group,
Many of you are familiar with my bandsaw re-sharpening protocol: http://www.woodturningvideosplus.com...aw-blades.html Over the years, I have saved several thousand dollars by using this protocol in my studio and have averaged around 8-10 re-sharpenings per band on my steel bands. Some turners who contacted me have stated they are getting the same amount of re-sharpenings per band as me (8-10) and others are only averaging (4-5) per band. While trying to determine why there was a disparity, I began wondering about the band tension and whether leaving the band tensioned on the bandsaw was one of the reasons some turners were seeing a lower number of re-sharpenings. Several turners who were averaging 4-5 re-sharpenings per band indicated that the reason they stopped re-sharpening the band was due to the presence of stress cracks. Of course, if these are EVER present in the band, it should not be re-sharpened, per the protocol - it should be thrown out for safety reasons, regardless of the length of time it has been used. However, I never leave the band tensioned on my bandsaw... At the end of the day, or when I know I will no longer be using the bandsaw, I de-tension the band. I've always done this since I've owned the bandsaw, about 8 years. When I stop re-sharpening my band, it is because the tooth is getting small, not because of stress cracks. In fact, I have only ever had two bands in 8 years ever develop a stress crack. I'm lucky I guess... Leaving the band in constant tension over time can produce stress cracks according to the band manufacturers, not to mention be hard on the spring, tire crown, etc. So my question is to ask your help to take an informal poll: If you are re-sharpening your bands using my protocol: 1.) How many re-sharpenings are you averaging per band? 2.) Do you de-tension the band every day, or leave it under constant tension? Of course, other factors can be at work here that determine the maximum number of times the band can be re-sharpened (abrasive wheel used, heavy handed, or light touch, etc.), but it would be interesting to find out if this seems to have any effect or not... Thanks in advance for your help and all the best to you and yours! -- Better Woodturning and Finishing Through Chemistry... Steven D. Russell Eurowood Werks Woodturning Studio, The Woodlands, Texas Machinery, Tool and Product Testing for the Woodworking and Woodturning Industries Website: http://www.woodturningvideosplus.com Free Monthly Woodturning Newsletter * Your email is kept confidential Sign up at: http://www.woodturningvideosplus.com/lathe-talk.html My Blog: http://www.woodturningvideosplus.com...deos-blog.html |
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