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Guidance on a Bowl Bend on a 1974 Custom Balladeer

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sycamore
Posted 2021-05-24 4:27 AM (#555587 - in reply to #554967)
Subject: Re: Guidance on a Bowl Bend on a 1974 Custom Balladeer


Joined:
March 2007
Posts: 686

Location: Cork, Ireland
seesquare - 2021-01-30 11:12 PM

RE: bowl bend protocol, as outlined above:
That pedantic style sure sounds like something I would write. I did a bowl bend on an 1113 Classical several years ago, & it had the hand-laid fiberglass bowl, which probably made the adjustment more feasible.
The method above is generally accurate. Above all, go slow. It won't take much angle change to make a big difference. Making the bowl-holding jig will be the biggest challenge. If you want to take a general shot at whether the bowl will bend, just put a bungee cord on the peghead & tail strap button, & let it sit for a few days. If the neck takes a different "set", after the tension is removed, & left to it's own device for a day, you just might be in business.
Best of luck!


just to clarify the bungee cord method: is it like this?



(Bowl Bend.jpg)



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sycamore
Posted 2021-05-24 7:02 AM (#555588 - in reply to #554934)
Subject: RE: Guidance on a Bowl Bend on a 1974 Custom Balladeer


Joined:
March 2007
Posts: 686

Location: Cork, Ireland
OK, after a beautiful 33-year relationship, this baby will now bend to my will. what do you think of my jig? A glass garden table and some luggage straps, books to keep the body from tilting. A pencil mark on the mitre block showes my starting point.

I was thinking about the various arrangements for supporting the round back and then I thought "the front is not round".

Now cooling, with fingers and toes crossed.

Does anyone have a protocol for bowl unbending?

Edited by sycamore 2021-05-24 7:03 AM
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MWoody
Posted 2021-05-24 11:36 AM (#555589 - in reply to #554934)
Subject: Re: Guidance on a Bowl Bend on a 1974 Custom Balladeer



Joined:
December 2003
Posts: 13958

Location: Upper Left USA

Take a look at this album and see what I did.

 

Photo albums (ovationfanclub.com)

 This is all you need.

Photo albums (ovationfanclub.com)

 



Edited by MWoody 2021-05-24 11:40 AM
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DanSavage
Posted 2021-05-24 6:38 PM (#555590 - in reply to #555588)
Subject: RE: Guidance on a Bowl Bend on a 1974 Custom Balladeer



Joined:
June 2012
Posts: 2279

Location: Lake Forest, CA
sycamore - 2021-05-24 5:02 AM

A glass garden table...


I would be careful not to overheat the glass lest it shatter.
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sycamore
Posted 2021-05-25 4:55 AM (#555592 - in reply to #555590)
Subject: RE: Guidance on a Bowl Bend on a 1974 Custom Balladeer


Joined:
March 2007
Posts: 686

Location: Cork, Ireland
Good advice, thanks.

Alternatively, I could set the kitchen table on fire...



(Bowl Bend 2.jpg)



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DanSavage
Posted 2021-05-25 11:41 AM (#555593 - in reply to #555592)
Subject: Re: Guidance on a Bowl Bend on a 1974 Custom Balladeer



Joined:
June 2012
Posts: 2279

Location: Lake Forest, CA
I should also add that you can only perform bowl bend on a cloth bowl.

SMC bowls can't be re-shaped.
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sycamore
Posted 2021-06-18 6:14 AM (#555740 - in reply to #554934)
Subject: Re: Guidance on a Bowl Bend on a 1974 Custom Balladeer


Joined:
March 2007
Posts: 686

Location: Cork, Ireland
Mine went OK. It did not bend as much as I thought but I've decided it's enough. I am still tuning it a semitone flat and the action is very acceptable now.
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