---------------------- multipart/related attachment --============_-1158905458==_ma============ St=E9phane, >Does anyone have a good trick for acurately measuring string >diameters while still in the piano ? >I normally use a micrometer on broken strings, but it is impossible >to put it between the strings that are still in place. I found that >caliper measurements are not accurate enough for proper use. What you require is a multi-anvil micrometer. I have been using one for many years to measure the strings in the piano. It is particularly handy when you are dealing with a broken bass string, since you can measure the cover and core diameters of the adjacent strings in the piano without letting the tension off. The above image, of the Mitutoyo 117-101, 0-25 mm metric micrometer (they also make an Imperial measurement version), was taken from the Mitutoyo website at; http://www.mitutoyo.com/cat2000a/l-39.htm These micrometers come with a round and flat anvil. The round anvil is used for measuring tube wall thickness. They are more expensive than a standard micrometer, but you'll have it for the rest of your working life. My multi-anvil is a Starrett, but the Mutitoyo is better made. Best, Ron O. -- _______________________ OVERS PIANOS - SYDNEY Grand Piano Manufacturers Web: http://overspianos.com.au mailto:info@overspianos.com.au _______________________ --============_-1158905458==_ma============ An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/dc/bf/cc/20/attachment.htm --============_-1158905458==_ma============-- ---------------------- multipart/related attachment A non-text attachment was scrubbed... Name: index_170_1.jpg Type: image/jpeg Size: 8064 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/a3/47/49/c2/index_170_1.jpg ---------------------- multipart/related attachment--
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