How do I fix this wavy side..

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rangerdave1
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How do I fix this wavy side..

Post by rangerdave1 » Thu Oct 24, 2019 10:54 am

I bent some Cherry sides and got some waviness in the lower bout.. Any way to fix this? Happened both sides but only on the lower bout.

I am thinking of trying to flatten it with a flat iron using a round pipe to support the inside of the side.
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Crafty Fox
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Re: How do I fix this wavy side..

Post by Crafty Fox » Thu Oct 24, 2019 11:26 am

Would it be possible to scrape & sand them flat?
How thick were the sides? I do mine at around 2.5mm.
Ken

rangerdave1
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Re: How do I fix this wavy side..

Post by rangerdave1 » Thu Oct 24, 2019 11:37 am

I thought about that but I’m sitting at 2.2mm right now and the wave/ripple is about 0.3mm deep so if I scrape flush, I’ll be at 1.8mm or so. Not sure if that will be thick enough and don’t have any experience doing this, well other then one build... It’s a shallow body and only about 100mm deep so I might be able to get away with a thinner side because of the shallow depth. I could also add some ribs on the inside to give it some strength but wonder if its worth the risk. Especially since I’ve only just started this build.

RodC
Beefwood
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Re: How do I fix this wavy side..

Post by RodC » Thu Oct 24, 2019 2:43 pm

One way I've seen it done is to put in support bracing where you need to sand things thinner.
Image

Then you can sand down to 1.5 or so.

Caveat - I haven't done this myself, just talked to people who have.

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rocket
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Re: How do I fix this wavy side..

Post by rocket » Fri Oct 25, 2019 9:33 pm

If you flattened the side sufficiently but it ended up a bit too thin you could laminate another thin layer inside.

Cheers

Rod.
Like I said before the crash, " Hit the bloody thing, it won't hit ya back

www.octiganguitars.com

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Steve.Toscano
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Re: How do I fix this wavy side..

Post by Steve.Toscano » Mon Oct 28, 2019 10:03 am

Scrape / sand and a few extra low & flat side braces is the way to go. If you end up at 1.8mm that's fine.

simso
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Re: How do I fix this wavy side..

Post by simso » Mon Oct 28, 2019 10:58 am

You could just leave that alone and take care of it in the finishing stage. Apply a few coats of sealer and lacquer and then flat sand it

Steve
Steve
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Do your own repairs - http://www.mirwa.com.au/How_to_Series.html

rangerdave1
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Re: How do I fix this wavy side..

Post by rangerdave1 » Wed Oct 30, 2019 3:39 pm

Thank you for the suggestions. I went ahead and glued the sides together, installed the neck and tail block and kerfing. I will scrape the worst out until i feel its getting too thin.

Dave

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