Main Discussion Area > HowTo's and Build-a-longs
Sinew Backed, Double Curve Bow
JackCrafty:
Yes, the older bow is unbraced in the pics. The normal brace height is 4-1/2". Sorry for the blurry pics....I plan to replace my cheapo camera in a week or so.
More pics of the older bow can be seen here:
http://www.primitivearcher.com/smf/index.php/topic,9026.0.html
JackCrafty:
Just so we are all on the same page...here are some pics of the real things...
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a finnish native:
nice thread. Remember that you only have to reflex the bow in the handle. no deflexing the outer limbs is necessary. that will happen automatically with set and tillering.
JackCrafty:
Finnish Native, thanks for bringing up the issue of final shape after tillering. This is a fundamental question: How much should set and tillering affect the final shape of a double-curve bow?
My answer.....NOT AT ALL. Nada. Zip. The goal is to induce the least amount of set during construction and shooting. This is true for ANY bow. It is a fundamental principal. Of course, set is nearly impossible to eliminate but the goal is to minimize it.....not use it as a shaping tool.
So, yeah, I respectfully disagree with the idea that no deflexing of the outer limbs is necessary. ;D ;)
YewArcher:
Yes, agree. The shape of the bow is set prior to tillering the bow. The way you are proposing Finnish would either break the bow real realy in the tillering process orwould end up being a real dud. I think that Tim Baker tries that in one of the TBB.He describes how they bent a bow like that in the middle and trid to tiller it to take the gull wing shape with a broken bow resulting every time. I think it was Tim. Besides its much easier to just create the whole shape prior to tillering. More predictable as well.
Steve
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