August 9, 2019 · 1:11 pm
I was too lazy to bust out all of my string making devices just recently to make a brand-new recurve bowstring and after that … a special deal turned up from the 60X string and cable television individuals, so I purchased a brand-new string from them. It came immediately (3rd day in the mail!) and was a really well made bowstring. It determined, as anticipated, 3/8 ʺ less than the length purchased, however they are really clear that they make their bowstrings to AMO specs, which implies that recurve bowstrings are determined when under 100 pounds of stress. (Which I make certain would get the length to precisely what was purchased.)
My concern is this. Have any of you ever put a stress meter on the string of a put up bow? I would like to see what the stress was on a typical acquiesce see how 100 pound compares.
Extra concerns might be:
- How does brace height impact string stress?
2. How does draw weight impact string stress? (I have actually drawn a great deal of bows and the greater the draw weight, the greater the string stress, however that is simply the instructions of the modification, not a sign of the amount.
3. Does twisting of the bow string impact stress?
I can develop the experiments and really pull them off … however I do not have portable stress meter (state 0-200 #) to make the measurements. They appear to be a bit expensive on the Web, with the most inexpensive variations being cost sailboat rigging.
Anybody interested? (I’ll spend for the information and/or short article.) Anybody ever become aware of such measurements being made?
Postscript I have actually contravened of this with commercially made Dacron strings, matched for really light drawing bows. These bowstrings were constantly too brief, potentially due to the fact that the light drawing bows might not come near anything near the 100 # of stress they were determined under. Strings can be reduced by twisting however not extended. When I make my own strings I can change the develop length to ensure this does not take place … however when you require a lots strings … oops.