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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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Encoder sand belt creep
Looking at a link provided here about steel belts for driving the
encoder shaft eventually led me to look a several web sites of companies that produce stainless steel belts, or drive bands. It seems that all the applications where a timing element, such as a toothed pulley, are not used, belt creep occurs. This happens because the belt is only moving at the same speed as the pulley for a small part of rotation. On one side of the pulley the belt is stretched. On the other it's compressed. A miniscule amount. But .0001" is also miniscule. This is probably where the "backlash" comes from that I'm seeing. Or, maybe belt creep and belt stretch. If I can get a little free time I can find out what is really going on. I'll keep the group posted. Eric |
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