Good description, but polishing can be better if varying the angles on the polishing wheels. very poor language I admit but its late ! Best Isaac Oleg As for the technique of sanding/polishing first one direcion and then 90degrees for the next grit, is not a good idea, IMHO. It would work just fine on new Ivory, but with the older Ivory, there is invariably "divots". If you sand this way, in order to remove, completely the "divots", you'll wind up with extremely thin Ivory, that will easily chip! When slightly sanding worn Ivory, I use a flat surface with a piece of thick action cloth on it. This will allow the sandpaper to conform to the actual "shape" of the keytop and the "divots" will be evenly sanded with the rest of the surface. This is a real touchy technique that takes finess. I hope all this helps. Best Regards, Joe Garrett, RPT, (Oregon) Captain, Tool Police Squares Are I _______________________________________________ pianotech list info: https://www.moypiano.com/resources/#archives
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