Main Discussion Area > Flight Bows
Arvins 62" osage design
Selfbowman:
Sq inches in the back of the working limbs for no set. You said you wanted more hands on proof . Just trying to help you out.🤠🤠🤠
sleek:
Oh yeah, Id like to see that tested and tried to be proven wrong. Got to have honest trial by fire. If Im right it will stand to scrutiny, if nkt, i need to know.
sleek:
--- Quote from: Selfbowman on December 19, 2024, 11:15:22 am ---Sq inches in the back of the working limbs for no set. You said you wanted more hands on proof . Just trying to help you out.🤠🤠🤠
--- End quote ---
Whats the dimensions of the bow he is building. Ill try and calculate how much set i think he will take.
willie:
--- Quote from: sleek on December 19, 2024, 09:31:27 am ---
Now I wonder what virtual bow says about your hypothetical bow Arvin? Im curios to check my work against that. It would be fun to have a bow build off competition between my formula and the virtual bows design.
--- End quote ---
Virtualbow doesnt "say" much, it's more of a visualizer for your inputs, but I would be happy to plug in your design if thats what you are asking. can you supply a thickness description?
1. assuming a straight taper, I would need the thickness at the point where the handle dip ends and the full bend begins along with the distance of that point from the center of the bow. And the thickness at the nock.
2. if the taper is not straight, then additional info will help. Its easy to change the thicknesses once the end of the dips are located to see different results.
should I assume the same recurve at the tips as in Arvins model above?
sleek:
I have no thickness description unfortunately. The thickness of the bow is determined by how stiff the wood is, and that I cant calculate. So, i leave it to the bowyer to determine as they tiller it, and as there is no draw length given by Arvin, one could only guess. That said, the draw length and thickness are not important to my equation, because they arent a factor in set and how much surface area a bow requires to be a certain draw weight. You can assume a 28 inch draw if you like to fill the requirements of virtual bow program.
The design i ran for Arvin is based on working surface area alone. the stiff tips, the recurve etc are not relevant, as that is again, a factor of tye bend radius, determined by the bows thickness.
If there is a way you can plug in generic numbers or just leave them as variables to be determined by the numbers I gave above, it would be nice to see.
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