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| Shape of the back dome http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=38378 |
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| Author: | Tom West [ Wed Nov 28, 2012 11:54 am ] |
| Post subject: | Shape of the back dome |
Have been considering the possibility of using a cylinderical shaped back rather then a spherical shaped. I wonder if any one does this and do they see any advantage either to tone or structure.Think it might be more stable in terms of body distortion over a period of time. On the other hand the back may not contribute as much to tone production. Looking for any positives or negatives. Tom |
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| Author: | bluescreek [ Wed Nov 28, 2012 2:04 pm ] |
| Post subject: | Re: Shape of the back dome |
I have not seen that this is any more or less stable than Spherical. Over time loads and stresses will change the guitar shape The best we can do is delay it. Tonally I don't think it matters. |
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| Author: | Pat Foster [ Wed Nov 28, 2012 3:06 pm ] |
| Post subject: | Re: Shape of the back dome |
I believe Laurent Brondel has built that way. You might PM him. Pat |
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| Author: | PeterF [ Wed Nov 28, 2012 4:32 pm ] |
| Post subject: | Re: Shape of the back dome |
So does Nigel Forster. He does cylinder tops too. http://www.nkforsterguitars.com/ |
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| Author: | Burton LeGeyt [ Wed Nov 28, 2012 6:22 pm ] |
| Post subject: | Re: Shape of the back dome |
The cylindrical back looks (and feels) very nice when done well, Laurent's are beautiful. I use a graduated arching system on mine, with the upper bout totally flat and the lower bout very arched. My thinking is that the upper bout flattening over time contributes to higher action as the heel must move out if the guitar loses its arch there. With the flat back, it has no where to go. I angle the rims down toward the neck joint roughly around the waist and the flat plane shoots up from there into the arch dictated by the 3rd back brace, if that makes sense. It has worked well for me. I do leave the second brace at full height as there is some stress introduced when clamping the back to shape. Wanted to mention it as another option- |
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| Author: | CharlieT [ Wed Nov 28, 2012 7:06 pm ] |
| Post subject: | Re: Shape of the back dome |
Here's a link to a recent thread over at AGF about the same topic... http://www.acousticguitarforum.com/foru ... ght=arched |
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