Primitive Archer

Or is there too much moisture in the sapwood to seal immediately?

Quote from: willie on May 24, 2024, 08:51:40 pm

I think most could learn from you, Arvin.  tillering can be an art.
Do you find the set happening in the same places when it ocurs? perhaps if you could write a little about how you monitor set as you tiller out. where you measure. when you measure etc, detail your procedures a bit more for the reader

maybe the set gets worse as you shoot the bow more?

Willie set never happens til I reach 20 inches of draw . Yes some times the more I shoot in a bow more set creeps in. Usually not more tan than 1-1/2” . On flight arrows maybe I should design a 20” draw. But the arrows have to be 22” long. So you might as well go for at least a 24” draw. I floor tiller to about 20 pounds over desired draw weight then go to the long string never going over desired draw weight.at about twenty inches of draw on long string I brace the bow.then go from there.

Hoping you can clarify about the "not more than 1-1/2""
would that be an additional 1-1/2" from shooting in over whatever set  happened when you finished tillering?

going back to the general question about monitoring set as you tiller:

earlier in the discussion the idea was presented that different limb back profiles should result in different bend profiles (eliptical vs circular etc.) this principle is based on the assumption that all parts of the limb are (or should be) stressed equally.

when the stress is equal throughout the limbs the set should also be equally distributed.

when I started tillering bows I made the typical newby mistakes and overstressd different parts of the limbs creating set in various places. its not hard to pick up one of these bows today and see where the oops occured.

If I were visually inspecting one of your well tillered bows with not much set, I would have a very difficult if not impossible job determining where in the limb set might be more or less than set in another part of the limb, and hence, where one might try to stay a touch wider or thicker next time.

When tillering?
Do you have a predetermined idea or a pattern for what the bend profile should look like?

when you get to 20" and start noticing set.......
are you looking for where the set is occuring and changeing your plan for how the limb bend profile should change?

Quote from: willie on May 24, 2024, 08:51:40 pm

I think most could learn from you, Arvin.  tillering can be an art.
Do you find the set happening in the same places when it ocurs? perhaps if you could write a little about how you monitor set as you tiller out. where you measure. when you measure etc, detail your procedures a bit more for the reader

maybe the set gets worse as you shoot the bow more?

Willie set never happens til I reach 20 inches of draw . Yes some times the more I shoot in a bow more set creeps in. Usually not more tan than 1-1/2” . On flight arrows maybe I should design a 20” draw. But the arrows have to be 22” long. So you might as well go for at least a 24” draw. I floor tiller to about 20 pounds over desired draw weight then go to the long string never going over desired draw weight.at about twenty inches of draw on long string I brace the bow.then go from there.

What Arvin said.  I pretty much do the same thing.  I may vary a little depending on type of bow build but pretty well what Arvin says here for alb or pyramid style and recurve long bows. 

I think most could learn from you, Arvin.  tillering can be an art.
Do you find the set happening in the same places when it ocurs? perhaps if you could write a little about how you monitor set as you tiller out. where you measure. when you measure etc, detail your procedures a bit more for the reader

maybe the set gets worse as you shoot the bow more?

Willie set never happens til I reach 20 inches of draw . Yes some times the more I shoot in a bow more set creeps in. Usually not more tan than 1-1/2” . On flight arrows maybe I should design a 20” draw. But the arrows have to be 22” long. So you might as well go for at least a 24” draw. I floor tiller to about 20 pounds over desired draw weight then go to the long string never going over desired draw weight.at about twenty inches of draw on long string I brace the bow.then go from there.

I am looking for western diamond back rattler skins. Any to trade or sell? or if you know of an ethical supplier, that would be great! I might be interested in sturgeon skins as well.
Thanks!