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| Scale Length http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=27656 |
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| Author: | RonaldD [ Wed Jun 02, 2010 9:02 am ] |
| Post subject: | Scale Length |
Hello, When you change the scale length from 660 to 650 do you have to change the size of the body from the original plan? RonaldD |
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| Author: | sttelnoj [ Wed Jun 02, 2010 9:14 am ] |
| Post subject: | Re: Scale Length |
no. if its an acoustic, maybe the bracing would need changes because of lesser tension in the shorter strings. i wouldn't know about that stuff. other than that, i cant see why the body would have to be changed at all. |
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| Author: | RonaldD [ Wed Jun 02, 2010 9:19 am ] |
| Post subject: | Re: Scale Length |
Acoustic. Steel string and classical. RonaldD |
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| Author: | Kent Chasson [ Wed Jun 02, 2010 9:39 am ] |
| Post subject: | Re: Scale Length |
It's routine to use different scale lengths on the same body. You generally do want to shift the bracing so it is in the same place relative to the bridge placement. |
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| Author: | Alain Moisan [ Wed Jun 02, 2010 11:48 am ] |
| Post subject: | Re: Scale Length |
On a nylon string, the fixed point for both scales being the 12th fret, the bridge should be moved further up the body by 5mm (a little less than 1/4"). Nothing worth calling your mother... And on an steel string, assuming it's a 14th fret neck joint, the shift should be even smaller than that. As long as the wings of the bridge sit on top of the X brace, I'd say you're good to go. But definitly no body sahpe changes... |
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| Author: | WaddyThomson [ Wed Jun 02, 2010 2:30 pm ] |
| Post subject: | Re: Scale Length |
Absolutely right Alain. My last was a 640, and I used exactly the same brace placing, body size and sound hole location and dimensions. Turned out great. Even got a full 19th and a piece of a 20th without obstructing the sound hole too much. I might make some minor changes if I was going to change it much more than that though. Also, it's different if it's a steel string. |
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