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 Post subject: X brace height
PostPosted: Thu Mar 26, 2020 5:12 pm 
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Koa
Koa

Joined: Fri Feb 24, 2017 8:43 am
Posts: 1700
I’ve seen some pretty fantastic variance in how high ppl like to leave the x brace height before things taper down.
I know tops car vary, but where do you start from?


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 Post subject: Re: X brace height
PostPosted: Thu Mar 26, 2020 6:19 pm 
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Koa
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Joined: Sun Jun 22, 2014 1:45 pm
Posts: 1445
First name: Michael
Last Name: Colbert
City: Anacortes
State: WA
Focus: Build
My x-brace starts @ 1/4"x 5/8". UTB starts @ 5/16"x 13/16". My typical x-brace intersection ends up about 1/2" tall after carving.

Best, M


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These users thanked the author Michaeldc for the post: SnowManSnow (Thu Mar 26, 2020 6:51 pm)
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 Post subject: Re: X brace height
PostPosted: Fri Mar 27, 2020 7:33 am 
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Contributing Member
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Joined: Fri Jul 10, 2009 4:44 am
Posts: 5398
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
Can depend on the type of body OM, Dread, etc but currently I'm using X Braces at 0.256 x 0.550" with very light (SG=.036) stiff spruce for an OM.
Last one turned out just fine.

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


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 Post subject: Re: X brace height
PostPosted: Fri Mar 27, 2020 8:17 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Tue May 13, 2008 10:44 am
Posts: 6232
Location: Virginia
I am building two OM's now and they are at 13mm, a hair over 1/2in. A dread would be taller, probably a full 5/8th. So yeah, it all depends.


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 Post subject: X brace height
PostPosted: Fri Mar 27, 2020 4:39 pm 
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Joined: Wed Feb 15, 2006 7:37 am
Posts: 4777
5/8" is a very safe number. That's where I start, and end up between 5/8" and 1/2” by the end, depending on the response I'm getting when I tap. I've also moved to tapping with the top glued to the rim before the back is on.


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 Post subject: Re: X brace height
PostPosted: Sat Mar 28, 2020 6:19 am 
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Koa
Koa
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Joined: Sat Jan 19, 2013 7:33 am
Posts: 1831
First name: Willard
Last Name: Guthrie
City: Cumberland
State: Maryland 21502
Zip/Postal Code: 21502
Country: United State
Focus: Repair
Status: Semi-pro
Hope this helps...

Attachment:
BraceSizeTable.jpg


Note that the center graft starts at 1/8" thickness, but between planing with a skew block plane to remove go-bar dents and shaping, final size is usually at or just over 0.080" maximum thickness.


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These users thanked the author Woodie G for the post: Colin North (Sat Mar 28, 2020 8:07 am)
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 Post subject: Re: X brace height
PostPosted: Sat Mar 28, 2020 8:13 am 
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Joined: Fri Jul 10, 2009 4:44 am
Posts: 5398
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
Thanks Woodie G, nice timing, I'm replacing a maple BP with a rosewood one on a build and just about to thickness it.

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


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