Hash Fellow robcat2075 Posted November 24, 2015 Hash Fellow Share Posted November 24, 2015 A soundpost is a wooden support that fits between the front and back of a string instrument like a cello. The exact placement of it is a mysterious art involving much trial and error.However, because the front and back are not parallel surfaces, you have to create a new sound post of a different length if you want your soundpost in a different spot. Matching the slope of the interior surfaces is also difficult. This is my vision of an adjustable length sound post that could be put anywhere. The center is a "jack screw" which has opposing threads on each side. Turning it would push or pull the two wooden parts. The ball joints at the ends are held together by magnetism.Unfortunately, about a day after I thought of this someone announced a commercial product that does much the same thing... for 500 euros! But maybe I'll make this for myself. I figure it's about $15 in parts and postage. Quote Link to comment Share on other sites More sharing options...
Wildsided Posted November 24, 2015 Share Posted November 24, 2015 How would it attach to the cello? Or does it not need to? Does the weight of the instrument hold it steady? Very nifty concept though. Quote Link to comment Share on other sites More sharing options...
Wildsided Posted November 24, 2015 Share Posted November 24, 2015 Never mind I just looked it up and I had a totally wrong idea of where it went on the instrument. They look extremely fiddly to install, even after taking your design into account. Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted November 24, 2015 Author Hash Fellow Share Posted November 24, 2015 Remember that game "Operation"? Trying to get a sound post in a cello is like that. Quote Link to comment Share on other sites More sharing options...
John Bigboote Posted November 24, 2015 Share Posted November 24, 2015 Is it used to keep the instrument's shape during non-usage? Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted November 24, 2015 Author Hash Fellow Share Posted November 24, 2015 Is it used to keep the instrument's shape during non-usage? No, it is permanently lodged in the instrument, to counter the force of the strings and bridge against the front. Quote Link to comment Share on other sites More sharing options...
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