Gluing mistakes..?

[par]

Hi,

Anyone wanna share their ideas why did this happen ? I was gluing my first project (cutting board).. So mistakes ofc are bound to happen

Too much clamping presure? Too litle?

Moving wood?

Unequal spread of glue? (very unlikely, tried to be really thorough)

Thanks..

 

[undergroundhunter]

Could be a number of things,
How old is the glue you are using? How did you joint the edges and was there any twist before you glued up?
Did it close up under clamping pressure?

Matt

 

[par]

Could be a number of things,
How old is the glue you are using? How did you joint the edges and was there any twist before you glued up?
Did it close up under clamping pressure?

Matt

Glue used was just recetly purchased from Amazon (Titebond 3). I did not see any twist on the panels.. I bought wood planed already, so all what was left to do for me was to arrange and glue. It did fit perfectly (no gaps before gluing)

Also I inspected closely after clamping everything, so I am quite confident this happened ~2 days after gluing operation

Could it be something to do with a direction of a grain?

 

[Phil Pascoe]

You bought the wood planed. That doesn't mean that it's flat, square, straight, or anything else.
Lesson No.1.

 

[undergroundhunter]

Titebond can be funny stuff, if it's been kept in a potentially unheated place for a length of time it could be off but looking at the rest of the joints I really don't think its that (do a forum search for Titebond and I'm sure you will find all the info you will ever need on the stuff).
In answer to your grain direction question, chopping boards e.g butchers blocks are made with the end grain showing for a reason. End grain is more stable and will not cup or warp. Is the chopping board still flat and square? Has it opened up since you brought it in the house?

Phil.p you beat me to it!!!! #-o

Just because the wood is sold as planed and squared it does not mean it is! I would always check it and give it a swipe or two with a finely set hand plane even if its just to remove the machine marks.

Hope this helps!

Matt

 

[Random Orbital Bob]

Almost certainly that the boards weren't jointed properly in the first place (assuming you're right about even glue distribution). Don't assume that purchased timber that's planed all round (PAR) is anywhere near square!.. If it were there would be a very small market for planar/thicknessers

 

[Roughcut]

Possibly true that the boards were not all planed square all round as Bob said.
Always worth making a quick check all round with an engineers square as usually they are not all bang on.
Another possibility is that there was some slight edge damage on that piece of timber.