Using plane, and files, make lining flat and exactly same height as Ribs. This is not so difficult. But difficult part is after this.
(I could put lining inside of corner block pretty well, this time. Yes! There's no unnecessary space inside of block!)
Since lining was glued on ribs, its shape is still rectangle. And usually we make this lining shape into triangle shape by cutting and shaving inside of lining. I usually use small chisell and sharp nife. This process is pretty difficult.
Because we easily cut also ribs under linings. We should not touch ribs but we have to shave linings.
Sometimes we encounter violins which have un-shaved lining inside of them. Since this process is kind of troublesome and difficult, I think some makers omit this. That's why some violins' linings are still rectangle. Actually, my first violin which was made in California was also like this. This process is troublesome, but if we omit this we'll give unnecessary weight on ribs and linings. From the point of sound making, it's also not good.
Some people say
"Vibrations from the top are transfered to ribs through linings. If linings are rectangle, violin loses some of vibrations. It should be triangle shape to make transfering easier."
Of course I make my linings like this.(But I noticed few days later, I can make them thinner. This photo is showing it's still little bit fat)
It's just cutting and shaping linings, but it takes so much time! It took half a day( more than I expected!)
(It's still little bit fat, I'm going to shave more later^^)
Yahoooy!! It's one of my favorite step!
This time I'm going to use one-piece back material. This material has little bit different frames. It looks like a flame of fire , prominence of the sun, and also surface of the Jupiter.
Which part should I use? Thinking about this is the happiest time of violin making...
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