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The kiss of death, I guess

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Muskyman:
I’ll wait a few days at least no need to panic now. I’m already working on a backup. It was a belly split from the bow I’ve been working on. It’s a little narrow. Only 1.33 inches wide after taking it down to bow shape. It’s at floor tiller right now.

superdav95:

--- Quote from: willie on March 16, 2024, 08:50:39 pm ---
--- Quote from: Hamish on March 16, 2024, 07:31:20 pm ---

Whether this is due to having lower MC, or if its due to permanent structural change, I don't know.


--- End quote ---

if you think of the cellulose cells as reinforcement and the lignins as the supporting matrix,
I think once the lignins are baked, they dont easily want to soften again


muskyman, at least wet the back with wet rags overnight
do you have a gram scale you can weigh the bow before and after?

--- End quote ---

Ya Willie is bang on here.  I’ve noticed this too.  The lignins and pectins in the wood actually harden with heat.  This is particularly true of heat treatment on white woods when a deep heat is applied to permanently change the cellular structure of the wood.  I’ve tested this out myself to see if tips could be heated in after with steam which all failed.  Even on the ones where less heat treatment extended out towards the tips.  Belly cracks always appeared.  I would suggest the similar problems arising with non white woods with heat corrections especially dry heat.  This being said I’ve seen some success with more then one steam only corrections fyi.  This is because you do t heat past a point of no return.   Dry heat can often go past the point of “no return”. If that makes sense. 

Muskyman:
As I said before, not sure where I read about the not steam heating after dry heating but I do recall reading it. I believe it was on this site. I don’t recall getting any bad info from here.

And yes Willie I do have a scale. Haven’t weighed this bow for a while. Mainly because I’ve been constantly working on it. I think I’ll weigh it today and see if it gains any weight from rehydration over the next few days. I heat with wood in the area I keep my bows so I’ve been keeping it outside in my shop.

I did try and line the tips up today but am going to let it sit for a while now..

Muskyman:
Went from 684 grams to 686 grams overnight. I’ll weigh it again tomorrow..

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