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dupont construction

Hi,

I have a 2011 dupont nomade d-hole. I recently noticed some sagging on the soundboard by the fretboard.

I plan on taking it in to a luthier so he can have a look. There are some very good builders nearby, but no one with experience working on gypsy jazz guitars. So I'm looking for some advise.

After taking a closer look the braces that run parallel to the longer sides of the opening were intact and firmly connected to the soundboard. I also noticed there were no braces that run on the narrower sides of the opening like in the collins and maccaferri plans I was able to dig up.

Is my problem a common issue?

What are your thoughts on the best approach to fix it and make sure it won't happen again?

I was thinking (a dangerous thing) the top could be removed and flattened, braces could be added for more structural reinforcement (like in the maccaferri plans. Does anyone know (or care to guess) how this would effect the sound?

Thanks
Mark

Comments

  • BonesBones Moderator
    Posts: 2,821
    Sounds like you might have let it dry out. Do you keep it stored in a hard case when not in use? Do you live in a dry environment? Do you use a case humidifier? 50% RH is about right. If you put it in a case with a humidifier and slack the strings you might see it come back up. DON'T OVERDO IT WITH THE HUMIDIFIER.
    Jose
  • adkadk New
    Posts: 8
    Thanks for the sound advise (pun intended). Usually id do leave it in the case, but I recently I decided to leave the guitar on a stand to increase my practice sessions. That worked. Humidity was at 35%. I should have kept an eye on that. Anyway, I brought the humidity in my room to 50%. After 1 week it's looking a little better. (not quite there yet though.) Fingers crossed... - Thanks, I hope it works, cheaper then brining it in.
  • BonesBones Moderator
    Posts: 2,821
    Yeah I know the temptation to leave it out of the case. I guess that's ok if you really have 50% RH but just the same I'd probably leave it in the case with a humidifier at least until the body recovers. Personally I always keep it in a case.
  • DanielJDanielJ AdelaideNew Ibanez RG550
    Posts: 5

    What kind of humidifier did you use? I have a similar problem, I choose between these now, but I think there is no difference :)

  • BonesBones Moderator
    Posts: 2,821

    I don't use a whole house humidifier. I use a case humidifier and also leave the guitars I'm not playing stored in a closed closet in the case if necessary. If it's really dry I put a small plastic bucket with a damp rag in the closet too. Low tech but I think it helps.

  • ImpexteamImpexteam New
    edited March 28 Posts: 1

    What kind of Water Heater or Humidifier do you use? I am looking for a better options, I looking for the right one from these. If you can help me suggest one?

  • JSantaJSanta NY✭✭✭ CB #42, Eastman DM1
    Posts: 149

    The temptation to leave guitars out of the cases is easy to give into. My guitars now all live in their cases, with the D'addario humidipaks in cases with them as an extra precaution. I also run a room humidifier in the room with the guitars, keeping the room around 45%RH. I've been using this humidifier for a number of years without issue: https://www.homedepot.com/p/Air-Innovations-1-6-Gal-Cool-Mist-Digital-Humidifier-for-Large-Rooms-up-to-500-sq-ft-HUMID10-BLACK/204512377

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