Acoustic Guitar Construction in the small shop -- Kenneth Michael Guitars LLC

Information, ideas and help for those constructing scratch built acoustic guitars or acoustic guitar kits - © 2017
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The purpose of this forum site is to provide a means for acoustic guitar makers at all skill levels to forward information, share experience and ask questions if project obstacles are encountered. We ask that egos be left at the door – the highest levels of courtesy and respect are to be shown to all. Posts containing disparaging comments will be removed. The “Acoustic Guitar Construction Forum” is owned by Kenneth Michael Guitars and is copy protected. Direct links to luthier suppliers are not permitted and will be edited.



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PostPosted: Tue Dec 19, 2017 12:01 am 
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Joined: Sun Jul 29, 2012 12:30 pm
Posts: 646
Location: Granby, CT
I have some offcuts from some over-length side material. Will using these as crossgrain reinforcement strips be worthwhile, or will I be better served making reinforcements from thicker lumber? My temptation is to strip the offcuts into 1/4" wide pieces and install one every couple of inches around the side. I've seen side reinforcements made from fabric soaked in glue to trapezoidal struts in Bourgeois guitars and a whole lot in between.

Thanks, folks.

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PostPosted: Tue Dec 19, 2017 12:21 pm 
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Joined: Sun Dec 30, 2012 1:20 pm
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Location: Arnhem area, the Netherlands
With your side material, used cross grain, you will be fine. It just needs to prevent cracking of the sides along the grain.
If a glued cloth will do the trick, then solid wood will do too.

Herman


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PostPosted: Tue Dec 19, 2017 1:43 pm 
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Location: Granby, CT
Thanks, reinforcing the anti-cracking idea is always worth mentioning. I had another topic, which of course I relied on telepathy to communicate...cupped sides. This seems to show up often enough that I might encounter it myself. Any idea whether side reinforcements made of the side's offcuts are useful in negating cupping? I can easily laminate a couple of thicknesses together and get struts a whole lot stiffer if I need to do that.

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PostPosted: Tue Dec 19, 2017 6:33 pm 
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Joined: Thu Dec 22, 2011 1:22 pm
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Location: Creedmoor, NC
I use the side cutoffs for mine. I cut them 1/2" wide and the are the side thickness (~ .075"). I place six on each side, centered over the back brace and the others centered between the end/tail block and brace. I like the symmetrical look it gives. I also chamfer the sides and ends of the reinforcement strips.


Attachments:
15 Side Reinforcements.jpg
15 Side Reinforcements.jpg [ 227.28 KiB | Viewed 94 times ]

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