Dogwood warbow 140# 31" (experimental bow)

[Archive]

Moin

ein schöner Bogen.
Ja, ich kann verstehen, wenn du den Bogen weiter testest, bis er kaputt ist. Genau so mache ich es auch mit mir wenig bekannten Hölzern. Meist nehme ich aber kleine Holzstücke zum zertesten und keine kompletten Bögen. Aber ganz ohne Bruch, kann man die Leistungsgrenze eines Holzes nicht erkennen.

Gruß Mütze

[Firestormmd]

Ishi, I think it would be much more realistic if you test the wood with a proper tiller, wouldn't it? So why not improve the tiller an then brake it? The results would be more usefull in my opinion.

greetings, Marc

[Agroman]

A proper tiller? Sorry, but the tiller as it is now looks good to me. Maybe there are some details that could be improved, but overall a solid tiller.

[Ishi]

Firestormmd , as we said- tiller would be more eyepleasant if it works more in the outer limbs but there are two things (if I am wrong let somebody correct me): it had some reflex on those places, that is visible in relaxed photo, unbraced. So it should be little stiffer on full draw in those zones. Second thing: softening outer limbs would change string angle pretty well and it is not good for such a heavy weight- it would stack and make already heavy draw to feel heavier. Because that I deicided to do not touch more. Working character bows sometimes lead us to dilemma: to be functional or nice to eyes.... Maybe it was not good decision but I always follow Tim Baker's mantras.

[Ishi]

Experiment is finaly done. Bow is broken, and some things are better visible now. To confirm as I said before: sanguinea is amazing wood, realy strong and tough. But it has one weakness: its knots. As I suspected, wood failed at that spots. What is reason for that? I do not know. This wood is realy hard and strong but its knots are like from some other wood- they are so soft and brittle and not maching with rest of the wood. Drawing further than 32" knots colapsed, one by one and all made one big crysal. Rest of the wood is intact. Bow is broken in one side knot that had core paralel with belly surface but across it.
I have pics of the brakage to discuss about it. On this pics seems that neutral plane is very close to the belly.

[Agroman]

I know that you had the intention to do this with this bow, but it's still pretty sad to see such a beast broken .

[Windmann]

It looks like a typical collapse of the belly. The knots could be one reason for this, but maybe the 140 Pound were a bit to much.
How many arrows do you had shot with this bow?

[Ishi]

Yes, belly colapse but seems caused first by knot colapsing. Rest of the belly (out of knots) is perfect, no sign of compression damage. 140 is for sure too much for this sapling but it's end was caused mostly by this reason, I think.
Almost non arrows- dozen.

[Haitha]

Did u dry the wood properly before?

Plz start a new dogwood-project with enforced knots! Would love to see.
However thank you very much for sharing!

I do agree with Agroman, it's sad to see, though it was an experimental bow.

H

[Ishi]

Haithaby, off course wood was properly dried before working. I will keep you informed with these tests.

[Sherrif Sherwood]

What a nice bow, but he died so quickly.
If the fingers are still there, that's a lesson, I had already experienced myself. Was too fast in processing the bow and had no attention paid to the wood and its small cracks. A small crack in the wood was the cause for a break and have cut my thumb when the bow is broken. Was not very funny,but now i´m back and I was very lucky with my surgeon. Now we are look very carefully onto the wood to be no longer surprised by the wood and its grain.
At the moment I set my attention to a juniper tree and an alder tree which is interrupted by a storm. Let's see what it is.
Have fun with your next projekt and be carfull.
With best regard Jürgen