Main Discussion Area > Bows
AVCase design Arvin bow build
Pappy:
(R :) now that’s funny Chris. Pappy
Selfbowman:
I’m sure pearl is right cause I missed the measurements! 🤠🤠🤠🤠
PEARL DRUMS:
Anytime I've missed weight it was easy to find the missing poundage. Either on the floor or stuck in my Shinto still :)
Selfbowman:
I think in glue vs natural growth rings is the density of the early ring which is where the sheer is happening. The glue joints don’t have sheer. I know that lams have early wood But they don’t run the entire length of the bow. So if we did not have early wood where would the sheer happen Arvin??? Good question?🤠🤠
mmattockx:
--- Quote from: avcase on March 09, 2023, 10:01:42 pm ---
The difference between a 50# design and 35# real bow is too great to easily explain away with a typical amount of variation in material properties.
--- End quote ---
I agree. Wood is inconsistent, but not that inconsistent. I wasn't really suggesting all of the difference was in the wood.
--- Quote from: avcase on March 09, 2023, 10:01:42 pm ---A couple more pounds may have been lost if the bow took some set. There is still at least 5 pounds missing draw weight to account for.
--- End quote ---
That's 10% of your target weight and I have seen different pieces of the same species of wood vary that much in MOE, so some of the rest of your answer may be in there, along with any dimensional discrepancies. I wouldn't be surprised if the wood turns out to be a bit lower MOE and the limbs a touch thin to get you that last 10%.
--- Quote from: PEARL DRUMS on March 10, 2023, 07:28:40 am ---The missing 5# you are trying to account for is on his shop floor.
--- End quote ---
;D That's very possible.
Losing 5% off the target weight only requires being under in limb thickness by 1.7%, which is around 0.010" or so on this weight of bow. Combine that with the wood being a bit less stiff and you get to 5# pretty easily.
Mark
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