Thread: Domino Joint Fails

Originally Posted by Carry Pine

No, I have redominoed the joint. But i would be willing to duplicate the experiment.

Well I've had a bit of a muck around today, and if I clamp a 4mm domino in the vice, I can (I've proved it) snap it with a pair of pliers and a lot of effort.

A 4mm tenon in pine would easily snap at the same time, and I could snap KD hardwood as well but I needed a hammer!

I drilled a pair of matching domino slots in a bit of KD hardwood, held one in the vice and belted the other (no glue) to try to break the domino in shear. Couldn't do it, but did break one by belting the timber sideways and sort of twisted it off. Again, this is understandable!

I still think the joint failed because the glue failed, and something had to give.... but I want to see how the shear failure came about, I suspect that maybe when the joint failed it twisted and snapped the domino?

Cheers,

P

Thank you for the replies. The finished articles are pictured below. Timber supplied by my son whose instructions were:
* something to rest a beer on
* nothing fancy
* only use the victorian ash supplied

I experimented with U beaut's white shellac and traditional wax. I'm after a finish that doesn't yellow on vic ash. I'm impressed.

The Richmond stubby holders don't get a lot of use these days, unfortunately.

Graham

Well I've had a bit of a muck around today, and if I clamp a 4mm domino in the vice, I can (I've proved it) snap it with a pair of pliers and a lot of effort.

I drilled a pair of matching domino slots in a bit of KD hardwood, held one in the vice and belted the other (no glue) to try to break the domino in shear. Couldn't do it, but did break one by belting the timber sideways and sort of twisted it off. Again, this is understandable!
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THE ABOVE by BM has touched on one possible that whether that Domino (heaven forbid) was the one weak link in the chain.

With the multitude of Dominoe's produced (and it is merely coincidental) would it not be possible that the occasional one could be suspect and not be of sufficient integrity to sustain the forces implied?

Although I have yet to see a failure of a Domino apart from this incident there remains as always "Murphy's Law" that something will always go wrong.

With Festools QC and high expectation of their product it does not mean that even the better known companies don't have their issues!!

A sceptic can sometimes be a healthy attitude

Cheers

Originally Posted by Tonto

Sorry for this, take it as it is.
All I read was your heading and thenHA HA HA so there whos the show off now

Tonto no need to gloat just because you havnt had a domino fail on you yet

Originally Posted by John Saxton

Well I've had a bit of a muck around today, and if I clamp a 4mm domino in the vice

Where did you get a 4mm Domi

Originally Posted by Lignum

Where did you get a 4mm Domi

I suspect I meant 5mm!

P

Quote:
Originally Posted by Lignum
Where did you get a 4mm Domi

I suspect I meant 5mm!

P

Thanks for the correction BM

Cheers