I've got this problem: I was trying to attach with a kreg to make a frame; I've attached all the other hardwood pieces, except this one! It's hard maple and it seems to crack every time. This is the 3rd piece! They are 3/4" from the edge. Is it the wood?
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To save the wood (~$30 for an 8' piece) I decided that some drastic action was required:
1) I glued the piece back together again with a Cyanoacrylate glue (Lee Valley Tools). Fixing minor chips with CA glue with a pointed popsicle stick is trick I found on the internet. This worked really well for this type of break.
2) I bought a dowelling jig -- time was of the essence and dowelled the pieces together. At first this did not appear to be working because I discover a flaw with the drill bit, but as soon as I had the drill bit replaced it worked like a charm!
3) Next time I will be smart enough to center the hole!! I think that this was my problem all a long as you all suggested. I did not realize that the height was such a finicky parameter.
4) Next time do test pieces!!
Thanks for all your input!
Marty
You say that you have already completed this joint three times without problems on the same aspect of different pieces of the same wood; also that trying to repeat it using this one pair of pocket holes you've had three identical failures. Bearing this in mind, and from your picture and assuming you used boards of the same thickness, I would suggest the problem can only be caused by, either:
My experience is that unpiloted screwing so close to the edge and end of wood-based material often leads to splitting, so it's important to hit the centre. (You might have got away with this if you had used Kreg's 'Micro Jig' - thinner screws.)
Imagining your ears steaming in frustration and wishing you luck!
Douglas
Martin,
The splitting can occur when the screw enters in or adjacent the growth ring in the wood,
causing the separation.
A common occurance when its near the end of the workpiece, like shown in the photo.
Akin to driving a screw or nail into the end of plywood, near the edge of the material.
Take a close look at the end of the workpiece---
you'll notice the wood has separated at the growth ring, in the wood.
Looks like the hole where the crack is may be a bit higher then the other one , are you joining two boards edge to edge and using a Kreg jig , if so the entry hole should be more in the middle of the board , hope this may help !!!
I would glue it back in place with a good wood glue,maybe a slight Crack in the wood caused the problem.
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