>Do you think that the results obtained using the pre-load method are (or >can be) equivalent to the method you describe? Yes, I do, but nothing is guaranteed. Whatever method you use, it will be an experienced judgement call and different people will get different results following what looks like similar methods. >Is there a significant advantage to your method? Is there a way you >factor in differences in panel flexibility? What are stringing pillows? > >RonN - I know you said you "have" employed this method, which I interpret >to mean you may use others as well. Not everything I string has one of my soundboard designs in it. I pre-load too. Calculation obviously works best on one's own new rib crowned and supported designs, where pre-loading works best on hybrid rib and panel supported, compression crowned, board assemblies produced by someone else by unknown processes, and original boards. While you can certainly pre-load rib crowned and supported boards, you can't realistically calculate deflections on any of the other types. Ron N
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