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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
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Mood: Happy
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Quote: Originally posted by coyootie  | just realized what a great idea your clamping mechanism is for your mold! how is it working out? do you use rubber bands to pull ribs up to the center
rib?
man, if your oud is a good as your mold design, you will have a beauty.
do you have a good pic of your overall design for the rib profile marker? that's also a wonderful invention. one of the biggest things to overcome in
layout is getting a good repeatable rib shape- if you get it really refined and at the finished shape, it will save a LOT of time in rib fitting.
best regards and mazel tov from New Mexico. |
Thanks coyootie,
The mold and the gluing mechanism has prooven itself, it was fast and accurate, the good issue is that by clamping that way you get the right vector
of presure for the gluing strip... and the rubber is keeping all the ribs attached to the mold! on the same time.
What exactly you need to see in the ribs profile? contact me in the personal mail or U2U and I will send you any pics that you want.
Thanks,
Yaron.
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
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Mood: Happy
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The Oud's belly is finished and out of the mold
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coyootie
Oud Addict
Posts: 32
Registered: 11-22-2005
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oud back
this is a really nice looking back! you can trim the base block at the bottom with a chisel ,but handle your back very carefully so you don't pop any
rib joints. a good idea to put a cross pattern of tape over the outside to give you a little more reinforcement before trimming this block.
a good lesson to us all to make the tailblock the correct shape first.......
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Jonathan
Oud Junkie
Posts: 1582
Registered: 7-27-2004
Location: Los Angeles
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Beautiful. Congratulations
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
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Mood: Happy
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| Quote: Originally posted by coyootie | this is a really nice looking back! you can trim the base block at the bottom with a chisel ,but handle your back very carefully so you don't pop any
rib joints. a good idea to put a cross pattern of tape over the outside to give you a little more reinforcement before trimming this block.
a good lesson to us all to make the tailblock the correct shape first....... |
Thanks for the compliments and the comments!
This tail block is at this size because of 2 resons
1. It is easier to glue when it is thick.
2. I will add a preamp and a jack... so I need more thickness.
There is no problem to take off some of the wood with a chisel.
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
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Mood: Happy
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Gluing the strips from the inside...
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Ararat66
Oud Junkie
Posts: 1025
Registered: 11-14-2005
Location: Portsmouth, UK
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Mood: mellow yellow
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Really nice
Well done - I'll keep watching the thread
Happy summer
Leon
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
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Mood: Happy
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The paper's strips are on, and the sound hole is ready
[file]10642[/file] [file]10644[/file] [file]10646[/file]
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msimon
Oud Maniac
Posts: 62
Registered: 12-8-2008
Location: Los Angeles
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Mood: Rast
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I have never seen an oud with a sound hole on the side. Very interesting!
MS
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theodoropoulos
Oud Junkie
Posts: 177
Registered: 12-21-2008
Location: Greece
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let me tell you my opinion..i have tried something like this in another instrument and i had a problem.The hole was covered when i was coming closer
to the instrument and that was bad..i hope this hole is free of the body coverage...
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Yaron Naor
Oud Junkie
Posts: 275
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Location: Bat Hefer, Israel
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Thanks for the comment...
| Quote: Originally posted by theodoropoulos | let me tell you my opinion..i have tried something like this in another instrument and i had a problem.The hole was covered when i was coming closer
to the instrument and that was bad..i hope this hole is free of the body coverage...
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Yes, this option was on my mind, I have a friend, a very good Oud player that helps me with the ergonomics and I saw that there will be no body
coverage... But I will have the soundboard free of holes and maybe a loader sound?
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Yaron Naor
Oud Junkie
Posts: 275
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Location: Bat Hefer, Israel
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Thanks!
Yes it is very interesting.
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muthada
Oud Maniac
Posts: 95
Registered: 5-10-2006
Location: Ein Carmel,israel
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Mood: oudish
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very nice man
the next genaration oud
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theodoropoulos
Oud Junkie
Posts: 177
Registered: 12-21-2008
Location: Greece
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well,this is an interesting experiment,and perhaps you should imagine the colour of sound it will be revealed.i suppose that it be be very bassy sound
....let's see
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
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| Quote: Originally posted by theodoropoulos | | well,this is an interesting experiment,and perhaps you should imagine the colour of sound it will be revealed.i suppose that it be be very bassy sound
....let's see |
Yes, this is a very interesting experiment for me... consider the fact that I am going to put a floating bridge which will effect the sound towards
more sharp and treble sound I will get a balanced one - time will say isn't it?
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theodoropoulos
Oud Junkie
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Registered: 12-21-2008
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the stiffer the soundboard the trembler the sound.But there is not only the bridge.The whole game is in the soundboard thickness and the braces.in
your place i would made a thicker SB (2.5 mm) and thicker braces in order to manage a balanced sound.
did you think just how to fill an "empty" SB optically???
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jdowning
Oud Junkie
Posts: 3485
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Location: Ontario, Canada
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An interesting unconventional design. Presumably, with a vent in the side of the bowl your soundboard will not have a 'sound hole'?
Some custom guitar makers - who have cut holes in the side of the body rather than in the sound board - have provided a sliding cover over the vent
hole so that the optimum area of the hole can be determined for maximum sound volume.
It would be interesting to experiment with variations of the vent area - perhaps with a temporary plug fitted in the hole, provided with a sliding
cover and sealed at the edges - just to see how this affect overall sound volume and response?
Good luck!
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ALAMI
Oud Junkie
Posts: 645
Registered: 12-14-2006
Location: Beirut
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Interesting indeed,
I think that John suggestion would be a great experimental tool.
The holes are useful for the resonance of the low frequencies: the Helmholtz effect, like when you blow laterally in bottle neck and it whistles.
The size of the vent should be proportional to the volume of the air chamber and "tuned" in order to serve the instrument bass sound. For guitars it
is usually tuned to resonate at A2, for old 4-5 course Arabic ouds it was tuned to D.
I had in mind a 2 layers rosette that can open or close to "tune" the vent but it was complicated to builh
Having a soundboard without holes will preserve the vibration energy but it should not be very stiff, I think.
Any special ideas for the bridge design ?
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
Member Is Offline
Mood: Happy
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| Quote: Originally posted by theodoropoulos | the stiffer the soundboard the trembler the sound.But there is not only the bridge.The whole game is in the soundboard thickness and the braces.in
your place i would made a thicker SB (2.5 mm) and thicker braces in order to manage a balanced sound.
did you think just how to fill an "empty" SB optically??? |
Thanks for your comments and the info, I have an experience with guitar tops and special pattern bracing, and I am going to do the same on my Oud, the
side sound hole, the special braces, and the floating bridge = will give me (hopefully) a bigger volume without harm the tone and the character of the
Oud completely. (you will see the braces pattern in two weeks... or see the attaced image below)
[file]10652[/file]
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
Member Is Offline
Mood: Happy
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| Quote: Originally posted by ALAMI | Interesting indeed,
I think that John suggestion would be a great experimental tool.
The holes are useful for the resonance of the low frequencies: the Helmholtz effect, like when you blow laterally in bottle neck and it whistles.
The size of the vent should be proportional to the volume of the air chamber and "tuned" in order to serve the instrument bass sound. For guitars it
is usually tuned to resonate at A2, for old 4-5 course Arabic ouds it was tuned to D.
I had in mind a 2 layers rosette that can open or close to "tune" the vent but it was complicated to builh
Having a soundboard without holes will preserve the vibration energy but it should not be very stiff, I think.
Any special ideas for the bridge design ? |
THANKS, for replying to this post...
I know about the Helmholtz effect, and the proportional the volume of the air chamber and "tuned" sound hole.
I measured the hole of a Turkish Oud and made the same proportions to my Oud - but the hole will be on the side - in order to get a clean and
consistent membrane top (it works for me on my guitars you can see and hear it here:
http://www.buildyourguitar.com/resources/naor/index.htm
Now I am designing the bridge... no images for now
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
Member Is Offline
Mood: Happy
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| Quote: Originally posted by jdowning | An interesting unconventional design. Presumably, with a vent in the side of the bowl your soundboard will not have a 'sound hole'?
Some custom guitar makers - who have cut holes in the side of the body rather than in the sound board - have provided a sliding cover over the vent
hole so that the optimum area of the hole can be determined for maximum sound volume.
It would be interesting to experiment with variations of the vent area - perhaps with a temporary plug fitted in the hole, provided with a sliding
cover and sealed at the edges - just to see how this affect overall sound volume and response?
Good luck! |
Thanks, Yes there will be a side sound hole and the top will be clean. I have built some side holes on my guitars and I will try it now on my Oud.
Yes, Maybe I will put some temporary plug and experiment the effect on the sound.
Thanks for the blessing, keep visiting my posts.
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
Member Is Offline
Mood: Happy
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Pegs box and the top.
[file]10793[/file] [file]10795[/file]
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Sazi
Oud Junkie
Posts: 786
Registered: 9-17-2007
Location: Behind my oud
Member Is Offline
Mood: مبتهج ; ))
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Wow Yaron, this looks really special, I love the organic shape of the bracing, like a growing tree, somehow I have the feeling this oud will sound
amazing! I look forward to it's completion, best wishes for you both, S
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
Member Is Offline
Mood: Happy
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The neck is almost ready.
Next reply will show the special bracing patern on the top!
[file]10948[/file] [file]10950[/file] [file]10952[/file] [file]10954[/file]
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Yaron Naor
Oud Junkie
Posts: 275
Registered: 1-24-2009
Location: Bat Hefer, Israel
Member Is Offline
Mood: Happy
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The neck is ready with a rosewood lamination
(The neck is only in position, not glued yet)
[file]10968[/file] [file]10970[/file] [file]10972[/file]
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