Prestreched Bow String ?
02-22-2002, 10:45 PM
#11
Join Date: Feb 2003
Location:
Posts: 520
RE: Prestreched Bow String ?
I'm with BC. I think there is a lot more stretch in how they are put together than how they are stretching the strand. As I understand it their process is proprietary, so we don't really know what they are doing (do we?). I will try a test with some of my stuff and see how much stretch there is to rupture. I am always reading about these wild amounts of stretch, it will be interesting to know how much a strand stretches before it breaks. If it turns out to be one percent, then we know it isn't the pre-stretching that is doing it.
You can't pre-stretch creep out of a string, that's why its creep. As far as I know this stuff has little basic elasticity. Also elasticity is that, elastic. So if it took hundreds of pounds to stretch, and the bow didn't have that, then the string would recover and there wouldn't be any difference. If the bow is enough to stretch it, then why not get your strings to the correct length, and just let them work in?
BC how do you build your strings (I already told)?
You can't pre-stretch creep out of a string, that's why its creep. As far as I know this stuff has little basic elasticity. Also elasticity is that, elastic. So if it took hundreds of pounds to stretch, and the bow didn't have that, then the string would recover and there wouldn't be any difference. If the bow is enough to stretch it, then why not get your strings to the correct length, and just let them work in?
BC how do you build your strings (I already told)?
02-23-2002, 12:57 AM
#12
Nontypical Buck
Join Date: Feb 2003
Location: New Stanton PA USA
Posts: 2,213
RE: Prestreched Bow String ?
Ossage, first let me say that I happen to live near an archery shop that supplies the industry with literally thousands upon thousands of strings, annually. The owner of this shop told me that string materials like s-4, premium 450, and ultra will easily withstand the 900lb. of pre stretch that WC incorporates into their product. I don`t want to go into this any further with other things that were told to me, as someone like len could easily start figuring names, and as he has so accurately put it before, not good business, archery dealers need to eat too!
OK, how do I build my strings?
1. I built a "bulletproof" string jig. My GMC with a 5.3 litre, 285 horse engine could probably bend the posts a little bit, but not much.
2. I put even tension on every loop around the posts. As even as I can feel, and see.
3. If I need a 55" main string, I make it long enough to put 25-30 twists in it. On a string this length, that would mean adding 3/8" to the string.
4. I am very picky about serving my strings, if I am almost done serving the cam end, and I mess up, I start over.
5. I serve the loops at the end of the string, too. It just makes for a neat package, plus on some bows it is hard to access the post on the cam, so it is easier to get the whole string on it, without the strands separating. A twisted string is a stronger string, that is why I make them long enough to twist up.
5. The main thing to making a good string is, regardless of how much tension used in spinning it, keep the tension constant.
6. Buss cable/cables do not need near as much twist, they are not ever under as much load as the main string. I make them to size, and 7-8 twists, put them on.
Pretty simple, just real particular.
OK, how do I build my strings?
1. I built a "bulletproof" string jig. My GMC with a 5.3 litre, 285 horse engine could probably bend the posts a little bit, but not much.
2. I put even tension on every loop around the posts. As even as I can feel, and see.
3. If I need a 55" main string, I make it long enough to put 25-30 twists in it. On a string this length, that would mean adding 3/8" to the string.
4. I am very picky about serving my strings, if I am almost done serving the cam end, and I mess up, I start over.
5. I serve the loops at the end of the string, too. It just makes for a neat package, plus on some bows it is hard to access the post on the cam, so it is easier to get the whole string on it, without the strands separating. A twisted string is a stronger string, that is why I make them long enough to twist up.
5. The main thing to making a good string is, regardless of how much tension used in spinning it, keep the tension constant.
6. Buss cable/cables do not need near as much twist, they are not ever under as much load as the main string. I make them to size, and 7-8 twists, put them on.
Pretty simple, just real particular.
02-25-2002, 02:54 PM
#15
Join Date: Feb 2003
Location:
Posts: 4
RE: Prestreched Bow String ?
I am compelled to shed some light on this subject as it pertains to Winner's Choice. First, we do not pre-strech our strings using 900 pounds of pressure. since the breaking strength of a strand of string material is from 90 to 150 pounds depending on the material used, putting 900 pounds on them would be pretty difficult. The entire string construction process used by Winner's Choice is a registered trade secret, and as such is not and will not be known by the public. I will tell you however that our process is not like any in use by other string manufacturers, or private string makers. Our pre-stretching process works well within the limits of the material as defined by the manufacturer, and our strings have been proven time and again substantially to out last the competition. Our servings are guaranteed not to seperate even on the one cam buss cables that are so infamous for serving problems. I am not here to say that other string makers can not build a quality string. Some string builders are extreamly good at what they do. I will say that our quality is trusted by many of the worlds best archers, as well as over 50,000 satisfied customers last year. we do not pay our pro shooters to shoot our products. They shoot our strings because they belive them to be the best. Many more of the top pro's would be shooting Winner's Choice if their bow sponsor did not require them to shoot another product, but that is another story. Mainly, I just wanted to respond to this post because I wanted to help to dispell some of the crazy rumors that are going around these days on this issue.
Mike Slinkard,
V.P. Winner's Choice
Mike Slinkard,
V.P. Winner's Choice
02-25-2002, 08:28 PM
#16
Nontypical Buck
Join Date: Feb 2003
Location: New Stanton PA USA
Posts: 2,213
RE: Prestreched Bow String ?
OK,first let me state that I have obviously been misinformed as to your tension spec., and I should have known that the material would not individually stretch to 900lbs. For this I offer an apology.
As to the serving on the WC strings, this could be debated until tempers flare, as I will stand by my original remark about seeing new sets first hand, that were less than spectacular.
You also state that WC does not pay pro shooters to use your product. That may be, but I assume you pay contingency money, or pro shooters would not list WC as a sponser, which quite a few pro shooters do.
This debate could go on and on, my intent is not to discredit your product, but to state my thoughts on pre stretching modern string materials to epic proportions. Too many shooters that I know, who are very well known, have told me of their findings on the product. It only makes sense that if the strings are stretched to levels previously unseen, that all elasticity would be gone, thus creating a string that would lend itself to higher vibration. I realize you are not going to divulge your technic for producing your strings, but you should be able to tell whether you actually do stretch to a higher rate than previously seen.
As to the serving on the WC strings, this could be debated until tempers flare, as I will stand by my original remark about seeing new sets first hand, that were less than spectacular.
You also state that WC does not pay pro shooters to use your product. That may be, but I assume you pay contingency money, or pro shooters would not list WC as a sponser, which quite a few pro shooters do.
This debate could go on and on, my intent is not to discredit your product, but to state my thoughts on pre stretching modern string materials to epic proportions. Too many shooters that I know, who are very well known, have told me of their findings on the product. It only makes sense that if the strings are stretched to levels previously unseen, that all elasticity would be gone, thus creating a string that would lend itself to higher vibration. I realize you are not going to divulge your technic for producing your strings, but you should be able to tell whether you actually do stretch to a higher rate than previously seen.
