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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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"Sine ball" in a project
I figured since this uses a ball-bearing to generate sine waves (mechanisms like that have been seen here now and then), this would have some interest: http://www.tatjavanvark.nl/harmonium/ Dave |
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