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I'm Working on restoring an old bass, top has serious arching deformation, do to poorly repaired cracks in the past. Working on filing one spot where the original wood is missing in the lower bought and wondering if anyone had any thoughts, thinking of just doing a belly patch which feathers down to the edge. Link to a couple of pictures. http://s1060.photobucket.com/user/Mr-bubbles/media/IMAG0158_zpse4083104.jpg.html?filters[user]=143348490&filters[recent]=1&sort=1&o=0

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I'm Working on restoring an old bass, top has serious arching deformation, do to poorly repaired cracks in the past. Working on filing one spot where the original wood is missing in the lower bought and wondering if anyone had any thoughts, thinking of just doing a belly patch which feathers down to the edge. Link to a couple of pictures. =143348490&filters[recent]=1&sort=1&o=0]http://s1060.photobucket.com/user/Mr-bubbles/media/IMAG0158_zpse4083104.jpg.html?filters[user]=143348490&filters[recent]=1&sort=1&o=0

Patches of this type do not work well on ribs. The patch keeps the related cracks open as there is not enough glue surface area to keep them closed. However you end up working this out, you need to make counterparts for the rib to keep it from distorting as the canvas reinforcements dry.

Matt Noykos posted a video not to long ago about a cello that Ryan Hayes did a great job on, it would be worth reviewing.

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Matt Noykos posted a video not to long ago about a cello that Ryan Hayes did a great job on, it would be worth reviewing.

Sorry for the confusion in the wording, the patch well be on the top of the instrument not on a rib, a quick search didn't find the cello video you spoke of but I'll look some more.

Thanks

Here's the thread.

http://www.maestronet.com/forum/index.php?/topic/332554-if-you-like-tetris/?hl=%2Bryan+%2Bhayes

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Sorry for the confusion in the wording, the patch well be on the top of the instrument not on a rib, a quick search didn't find the cello video you spoke of but I'll look some more.

Thanks

Got it, I should have looked closer. A small through patch followed by a belly patch would probably work well. Where is it on the lower bouts, and have you done much of this kind of work before?

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It's by the end of the bass bar, the old bar extended to the lower block but a more standard bat would end right before the hole. I've done several sound post patches and a couple of similar patches for button repairs, also made 8 violins/violas.so at least I know how to sharpen the tools :)

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