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  1. #15
    Senior Member khaos's Avatar
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    I don't foresee many scale materials cracking under .005" displacement... Open and close a pair of scales, see how much they flex. Flexing creates greater stress than simple compression, as it puts one edge in compression and the other in tension, and exerts a shear between them... and I would be willing to bet that in flexing they compress/stretch more than .005" displacement at outside faces. Try and check this with your calipers please.

    Anyway. FWIW I am still going to try and run tests on various materials, pine, oak, walnut veneer (if veneer holds up solid will), and I can cut samples of I think ash, cedar and osage orange (my bet is on osage orange... very hard very dense. We use it for making fenceposts. Only wood I've ever seen dull a chain saw in five cuts), steel (not sure of the thickness I'll have), plexiglass/lexan, guinea fowl bone (porous flying bird), chicken bone (porous flightless bird), lamb bone (dense bone), possibly kudu horn (if we have a mucked up one lying around, and warthog tusk (if we have one that my dad will let me play with, usually they go towards knife handles and bottle openers and carvings) and possibly glass, mineral samples and stone samples if my dad has kept his masonry bits sharp.
    Last edited by khaos; 07-29-2009 at 03:41 AM.

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