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Violin bridge / what kind of cut?


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The known cut of the violin woods is the quarter and slab cut.

https://www.google.com/imgres?imgurl=https%3A%2F%2Fmedia.springernature.com%2Flw785%2Fspringer-static%2Fimage%2Fchp%3A10.1007%2F978-3-319-92796-1_5%2FMediaObjects%2F340640_1_En_5_Fig27_HTML.png&imgrefurl=https%3A%2F%2Flink.springer.com%2Fchapter%2F10.1007%2F978-3-319-92796-1_5&tbnid=D_yHQNNqhn7cqM&vet=12ahUKEwiTtrve2sfqAhUT-hoKHfv2A3kQMygBegUIARCSAQ..i&docid=TH2XEeTc9yjJmM&w=785&h=514&q=violin back tone wood slab cut springer&ved=2ahUKEwiTtrve2sfqAhUT-hoKHfv2A3kQMygBegUIARCSAQ

Herron Allen at his book notices " bridge must by made of spotted maple,neither too hard nor too soft, the grain horizontal...". 

What kind of cut is the violin Bridge? Is there only one way? An example is here http://schuster-stege.de/Das_Holz_E.html

Picture is more helpfull, so, if I can give an example:

Is this a kind of bridge cut or am I completely wrong? 

Also, are there suggestions for European sellers of wood for bridges (untreated and high quality Bosnian maple)? 

Thank you very much all for your time

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10 hours ago, FiddleDoug said:

Quarter cut, top of bridge towards the center of the tree. The long medulary rays on the back of the bridge indicate a true quarter cut. Since the bridge tapers bottom to top, the front, with shorter rays/flecks, is slightly off true quarter.

A bridge cut at a carefully chosen distance from the center of the tree will have both its back and front sides showing long medullary rays.  Bridges of the same thickness but cut at all the other distances can have only one side with the long rays.

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Also bridges tend to have very tight grain so that only a small part of the quarter-sawn maple billet may have appropriate grain.   I experimented with using an 75 watt epilog laser to cut 6mm thick maple into bridge blanks.  Finding plain quarter-sawn maple with tight grain was rare.

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