> As far as ham handed technicians the same would >apply to felt bushings (hey, there's always a number 25 pin if you messed up >the last three attempts). Ok, you got me. What I meant was resilience and elastic limit. The stuff would have to be on the soft side to allow some human tolerances for reaming or there would be 0.0001" difference between a flange that swung 50 times, and one that didn't swing at all. But the spring back is weak, and Teflon easily deforms permanently. Felt is soft, but much more springy, and will take more abuse during pinning and handling and still spring back. And if it was soft enough to have enough resilience for flange bushings, the mounting screw would squash it. >If you messed up one attempt at repinning you could >try it again several times with the teflon flange as well. And a teflon >flange should be as easy to replace as a felt bushing. Easier, but I don't think I've replaced a half dozen flange bushings in 25 years, other than for the bench test or in flanges I didn't have direct replacements for. >Also, I was thinking >of this more as an application for low end pianos where the cost of assembly >is a primary consideration. After they're put together there doesn't need to >be any service, right? Right, not even tuning, unless someone drops a pencil or umbrella inside. What's the material and fabrication cost per flange, compared to felt bushed wood? If they're similar, those few under the bench could make the difference. >----------- >Wonder why they don't like ABS for the shanks? >----------- I don't know for sure. Ron N
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