Edge Joining With KREG Jig - Woodworking Talk - Woodworkers Forum
 
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post #1 of 16 Old 10-18-2011, 07:35 PM Thread Starter
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Edge Joining With KREG Jig

A little shelf project for the living room. Eight screws per joint. Maybe overkill?


Shelf dimensions:

1.200 thick, 11.23 deep, 11' length. For displaying ceramic Christmas houses.

After letting the first joint dry overnight, tried busting it apart with a 2 lb. sledge, no movement at all.

Screwed and glued.
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post #2 of 16 Old 10-18-2011, 08:20 PM
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That's pretty good for end grain. I had no idea that it would be so strong. I always try to avoid an end grain joint. Maybe not any more.
Thanks for the tip.

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post #3 of 16 Old 10-24-2011, 09:51 PM
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How did you get the ends flat and square? Just the table saw?
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post #4 of 16 Old 10-25-2011, 01:32 AM
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I've noticed something similar with poplar, Kreg and TB-III.

It was a face frame and I had to take the joint apart after about 45 minutes. (End grain to edge grain.) With leverage I was able to break the joint apart. HOWEVER even after 45 minutes the glue joint was stronger than the wood! I pulled edge grain off when disassembling the joint.

The Kreg screw is a clamping device and TB-III joints should be clamped. (Isn't that what the manual says? ) Amazing what happens when we follow the instructions.

Now, all that aside... In my house...

Ceramic / Shop built shelf / Possibility of sleeping in the truck bed ...

I think that I'll pass.

Use the right tool for the job.

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post #5 of 16 Old 10-25-2011, 04:51 AM
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Half laps would be the way I would join end to end. Screws weaken the end structure of both pieces. IMO, that method is a very weak joint.








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post #6 of 16 Old 10-25-2011, 06:02 AM
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Finger jointing is faster/stronger....just sayin.BW

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post #7 of 16 Old 10-25-2011, 06:20 AM Thread Starter
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Quote:
Originally Posted by bluedome View Post
How did you get the ends flat and square? Just the table saw?

Just a square, and circular saw.

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post #8 of 16 Old 10-25-2011, 06:23 AM Thread Starter
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Quote:
Originally Posted by cabinetman View Post
Half laps would be the way I would join end to end. Screws weaken the end structure of both pieces. IMO, that method is a very weak joint.








.


Just depends on "who" is making that joint.

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post #9 of 16 Old 11-02-2011, 03:05 PM
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Quote:
Originally Posted by cabinetman View Post
Half laps would be the way I would join end to end. Screws weaken the end structure of both pieces. IMO, that method is a very weak joint.

.
If it was weight-bearing with the board in a horizontal position, i.e. pressure against the face, then maybe. But if it was being used for a table apron or other application where any load was against the edge, then it would be plenty strong. OP did say it withstood a 2lb hammer blow.
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post #10 of 16 Old 11-02-2011, 04:21 PM
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Quote:
Originally Posted by cabinetman View Post
Half laps would be the way I would join end to end. Screws weaken the end structure of both pieces. IMO, that method is a very weak joint.
I would also suggest that a tongue and groove would be another choice.





.
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post #11 of 16 Old 11-02-2011, 05:39 PM
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Quote:
Originally Posted by H. A. S. View Post

After letting the first joint dry overnight, tried busting it apart with a 2 lb. sledge, no movement at all.
Well that's one way to make sure a joint is strong

I would be a simple man, but that would be too simple
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post #12 of 16 Old 11-03-2011, 12:29 AM
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AFAIK, you're really only supposed to use a single screw at each location rather than pairs of screws. If you wanted to use 8 screws, I'd maybe put 4 in each board with an offset stagger.

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post #13 of 16 Old 11-19-2011, 11:04 PM Thread Starter
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Finally Mounted

I'm going to let it sit on the Corbels/Brackets for a few days and let it relax. Bumped it a couple times bringing it in from the barn, still solid as a rock. Wifey loves it, too. Here it is with only one ceramic Christmas House. She will have it full before Christmas.
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post #14 of 16 Old 11-20-2011, 04:05 AM
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post #15 of 16 Old 11-20-2011, 04:07 AM
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Should have no problems with that nbr of support brackets.
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post #16 of 16 Old 11-20-2011, 09:55 AM
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Lookin good...
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