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Joining cross grain to end grain. How to make a strong joint?

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Forum topic by dbhost posted 12-10-2009 06:49 PM 3066 views 0 times favorited 11 replies Add to Favorites Watch
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dbhost

5607 posts in 2698 days


12-10-2009 06:49 PM

Topic tags/keywords: question

I am not sure how to explain what I want to do here, but here’s the old college try…

I have a project, a mantle clock, that I am making from Black Walnut and Red Oak. It will be a Tee design, with the top of the tee being the actual foot of the clock body, The upright piece will be 6” wide x 12” tall. The base piece will be 8” square. All built from 3/4 stock…

I want to feature a cross design in the upright piece, and this is where I am stumped. I am thinking of making the striped section, walnut, oak, walnut, then slicing it at the right length and inserting the cross piece. Making that joint is going to be somewhat interesting… I am considering one of two methods. Half lapping, so the cross piece from the side looks like an overgrown piece of Z flashing, or using Biscuits. From an aesthetic point of view, I think biscuits will be a better idea…

Am I on the right track or did I have a major mental malfunction?

The base to upright to base joint will simply be screws, so I am not worrying about glue there. I have been considering doweling that joint, but in brutal honesty, I am not comfortable lining up dowel holes like that quite yet… Maybe next project when time isn’t so critical…

-- My workshop blog can be found at http://daves-workshop.blogspot.com


11 replies so far

View AaronK's profile

AaronK

1441 posts in 2930 days


#1 posted 12-10-2009 06:57 PM

im having trouble understanding – could you post a schematic?

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dbhost

5607 posts in 2698 days


#2 posted 12-10-2009 07:11 PM

I can this evening. I hand sketched it up, I can scan the sketch and post it…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

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AaronK

1441 posts in 2930 days


#3 posted 12-10-2009 07:12 PM

cool!

View CharlieM1958's profile

CharlieM1958

16243 posts in 3684 days


#4 posted 12-10-2009 07:25 PM

Like Aaron said, it’s a little hard to picture what you want to do. But the good news is that I don’t think that really matters.

If your only concern is the strength of the joint, I don’t think you have anything to worry about. In a project of these small dimensions, and where there is not going to be any significant stress applied, I think your cross grain to end grain joint would probably be strong enough. Adding biscuits would definitely do the trick.

-- Charlie M. "Woodworking - patience = firewood"

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a1Jim

115202 posts in 3043 days


#5 posted 12-10-2009 07:35 PM

I’m have trouble picturing exactly what your doing also. So it you center is shaped like a cross It seems a half lap will do the job.

-- http://artisticwoodstudio.com Custom furniture

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dbhost

5607 posts in 2698 days


#6 posted 12-10-2009 09:02 PM

The mantle clock Sketchup.

Not sure if that helps…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View Cory's profile

Cory

758 posts in 2885 days


#7 posted 12-10-2009 10:30 PM

Mortise and tenon would make it very strong and give glue area. Or, you could go the rout I took on a recent project and make a sliding dovetail (not my idea, btw, I gleaned it here from the experts).

-- The secret to getting ahead is getting started.

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AaronK

1441 posts in 2930 days


#8 posted 12-11-2009 03:28 PM

AHHH i see what you mean. i think charlie hit it on the nail – this piece isnt going to be stressed, so biscuits would be more than enough.

do you have a doweling jig?

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dbhost

5607 posts in 2698 days


#9 posted 12-11-2009 07:25 PM

Yeah, but my doweling jig is worse than operating the drill free hand. It’s an old General and it is REALLY sloppy…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

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AaronK

1441 posts in 2930 days


#10 posted 12-11-2009 07:34 PM

this one http://lumberjocks.com/reviews/1081 is pretty well reviewed and is pretty cheap. a good alternative to the general.

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dbhost

5607 posts in 2698 days


#11 posted 12-11-2009 08:55 PM

Yeah, I first saw that the other day…

I got the General jig when I was in college working at Ace Hardware, I paid the employee discount price and I got ripped off!

While it wasn’t enough to handle my Hitachi routers, I had a Wolfcraft router table that served me exceptionally well when I had my Ryobi R161 router… Still plugging away for a friend of mine from college…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

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