bamboo backed hickory delam help please

[sleek]

What is glue line creep?

Im letting this bow sit for a few days. Will work it again thursday night. Should be plenty dry by then if I glued it last night. Right?

[PatM]

Creep is when the glue is not solid enough to not allow the materials to move under pressure or contraction expansion of the glued surfaces.
 The materials drift without actually becoming detached.
 For a while many guys were adamantly saying that TB3 did not creep but nearly all of them have changed their tune.
 You will particularly note it in riser  and fade areas.

[sleek]

Well that explains it. I have a glued on handle that at the fade isnt a smooth transition anymore.

[PatM]

That's the classic sign. The slight ripple in a formerly smooth fade transition of two woods.

[sleek]

Soooooooo epoxy it is then? Or what other options are there?

[bowmo]

Smooth On till the day I die...

[mikekeswick]

Honestly it's not the glue it's preparation.....If a bamboo backing is prepared well and TB3 is used correctly they will not delaminate.
As mentioned above resourcinol is a fantastic glue. IF you can't get perfect surfaces then resourcinol's extra strength MAY help you but it also isn't really a gap filling glue. The problem with using a gap filling epoxy is it almost encourages you to be lazy with prep.
I'll say it again - get the data sheet that every glue has. One email to the manufacturer.

[sleek]

I got it to brace just now and its holding.  Guess I just didnt let it dry enough last time?

Now its wanting to twist on me. In an elb style and im only going for 45# on it. Its 1 1/8" wide at the handle. As I was measuring I see now the belly and the back aren't perfectly parallel to eachother. I feel like such a noob....

[DC]

I feel like such a noob....

That's just the bow gods smackin' you back a bit.

[sleek]

They may not be done yet. Because the bow is now warped. The limb tips have aligned off center and the bow now bends in two directions.  The normal way where the back stretches and belly compresses and now one side is stretching and the opposite side is compressing. How to fix?

[sleek]

After exercising the bow a few times it has improved.  The string is still towards one side of the handle but at least it is almost touching it. I imagine when drawn it straightens out. Gonna exercise it more at finish it up. Its 65.5" long btwand I glued in 1.5" reflex. After unstringing it has .5" string follow and send ttles back to perfectly flat. Not bad for boo backed hickory elb...

[bushboy]

You could use side notch to help with alinement .

[sleek]

I discovered I can press the bow sideways agaisnt the floor as if im floor tillering it to get good tip alignment. I got to shoot the bow today. It dont look like much but man its snappy and I am surgical with it. I think im gonna try some pinpoint candle flame snuffing...

[Springbuck]

I would lean towards one of the pieces being cupped and the surfaces not contacting fully. URAC will hold that gap, TB3 wont.

  This is it.  Bamboo backs are crowned and TB II has enough water in it that the bamboo can absor someand the edges will lift.  This is why I always use rubber innertube clamps when putting on a bamboo backing, and lots of them.  AND, I Like the bamboo to be about as wide as the wood, so the edges really hold dow,

I had the same problem you did, when I used C-clamps all along.

[sleek]

AH HA!