Main Discussion Area > Bows
ERC sinew trust
Kidder:
So I’ve been working a sinew backed ERC bow for months now and am having some potential catastrophic failure issues popping up. There was a hinge and at that spot the ERC has cracked on the side and through the back under the sinew in 3 places now. It’s 65 inches TTT. I’m at 27 going for 30. I’ve filled the cracks and unbraced it and the reflex has clamped it and each time those appear to be holding but a new crack pops up. Can I trust it? If it fails will the sinew prevent explosion?
Bob Barnes:
I'm watching your progress, but I have never had any luck using the heartwood of ERC. I know several people that make very nice ERC /sinew bows, but they only use stave sapwood. Good luck.
Kidder:
--- Quote from: Bob Barnes on March 11, 2023, 01:48:31 pm ---I'm watching your progress, but I have never had any luck using the heartwood of ERC. I know several people that make very nice ERC /sinew bows, but they only use stave sapwood. Good luck.
--- End quote ---
That’s interesting. I’ve made a number of good heartwood ERC/boo bows.
superdav95:
Kidder. The sinew will prevent an explosion but not necessarily a failure of the wood. How much sinew did you put on the back.? You may be crushing the heartwood under the sinew. Just curious. Did you have the erc bow at brace prior to sinew or partial tiller or full tiller?
bradsmith2010:
wrap that area heavily,, and only draw to 27
Navigation
[0] Message Index
[#] Next page
Go to full version