Heat treating belly of sinew backed bow.

[PatM]

True,  but they are just tweaking the bends and twists, not actually heat treating a limb.

[DC]

Sorry, my mind wandered, I forgot the treating part

[hoosierf]

I’ve done it once. Propane scorch quick.  I put it in a form with back set.  No I’ll effects but I think it’s risky.

[maitus]

It can work. Less air flow and more heat. Thanks !

[maitus]

Has anybody used ironing for heat treating? Would it work?

[DC]

I don't think it's hot enough. It has to get up to around 400°f. Unless your iron has a "Yew" setting

[maitus]

I checked, there is no "Yew" settings .. but if i would play a bit with heating controller...what You think?

[Marc St Louis]

I tried it on a sinew backed Osage many years ago.  The sinew lifted in several places

[DC]

You were heating the belly side, right?

[DC]

I was wrong big time. I just checked my shop iron with my laser thermometer and when its turned right up to "linen" its 500°f. Should be plenty hot enough. I'll check after lunch to see where 400°f is.

[sleek]

I was wrong big time. I just checked my shop iron with my laser thermometer and when its turned right up to "linen" its 500°f. Should be plenty hot enough. I'll check after lunch to see where 400°f is.
[/quote

" Honey, what are you doing?"
"Oh just ironing out the hinges on this bow."
" Darling, when you are done, mind ironing out the hinges in the laundry?"

[Deerhunter21]

Ha!   

oops she saw the post and it reminded her it's my turn to iron. 

[DC]

It works. At least it gets the wood hot enough to turn colour. I ironed a piece of Yew that was 5/15-3/8" thick. In about 5-10 min the back side was about 180°f and the belly was in the high 300's, almost 400. I tried the wool setting but found that I had to go all the way up. The belly would have to be very flat. The advantage a heat gun has is it doesn't need a flat surface. If the iron went a little hotter it would work better. But in a pinch I bet you could heat treat a bow with an iron.

[Traxx]

The next bow i will tiller and heatreat before sinewing. Im stupid

Strange thing about that statement is,,someone will attempt to do it that way and you will advise them otherwise and they will say how smart you are..You can look at it as "Im stupid" or " i just increased my knowledge" and became smarter..