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Author Topic: Brace Layout Question and Answers  (Read 40854 times)

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Offline Jim_Rogers

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Re: Brace Layout Question and Answers
« Reply #80 on: July 13, 2018, 09:02:41 AM »
Jim,
About the 1/8th extra thickness you add to braces. I assume you pair down that inner face to 4 inches to get a tight fit? My braces are up to 1/8" under nominal 4" . This will leave a gap in the mortise. Should I layout my mortises at 3 7/8"? I could lay out a 2" mortise 1 7/8" from the reference face?

Thanks,
Tim
Tim:
Yes, I hand plane down the inner face, the face that is flush with the tenon to make the tenon 2" thick.
Quote
My braces are up to 1/8" under nominal 4"
This is exactly why I mill my brace stock over sized.
I would not do a 1 7/8" mortise, I'd still cut it two inch and shim the gap with something that won't show. Your tenon offset has to be 2" off the outside face, so the shim goes on the inside but trim it back so it doesn't show in the mortise.
Jim Rogers
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Offline TimFromNB

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Re: Brace Layout Question and Answers
« Reply #81 on: July 13, 2018, 09:11:11 AM »
Hi Jim,

Thank you, appreciate the help! Too bad I didn't read this before milling ;D

Will the gap cause any structural problems or is it just aesthetic?

Tim

Offline Jim_Rogers

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Re: Brace Layout Question and Answers
« Reply #82 on: July 13, 2018, 09:12:58 AM »
Brace strength is in compression. So the missing 1/8" shouldn't be a problem.
Jim Rogers
Whatever you do, have fun doing it!
Woodmizer 1994 LT30HDG24 with 6' Bed Extension

Offline Roger Nair

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Re: Brace Layout Question and Answers
« Reply #83 on: July 13, 2018, 03:16:11 PM »
There is another option.  Survey the brace material for minimum width.  Lets say it is 3 3/4".  So maintain the 2 plus 2 system, use a 2 inch mortise and tenon with a housing that extends toward the center of the post 1 3/4" beyond the mortise.  Reduce the brace with a 3 3/4" gain at the joint to account for irregularity.  The advantage here is that the outside mortise line becomes reference, the brace becomes fully mortised, no shimming to keep tight m+t and no shrinkage gaps will appear.  Plus centered braces have to my eye a more pleasing appearance.
An optimist believes this is the best of all possible worlds, the pessimist fears that the optimist is correct.--James Branch Cabell


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