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View Full Version : Peep Rotation from Various Builders



TMax27
02-17-2012, 09:17 AM
I've had and used strings from numerous reputable strings builders: Stage 1, Vapor Trail, H&M, Croft, Drop Tine, etc., so its not a isolated incedent, but here's my question... When you buy a custom set of strings, should the peep rotate into the correct eye alignment position as the bow is drawn, or should the peep never rotate as you draw the bow.

Typically, I end up setting the dloop straight back with the peep about 1/8 - 1/4 turn to the side, the side depending on which way the twists are. On the draw, the peep rotates into the correct posistion. Is the normal, or should the peep be in alignment the whole draw cycle?

Dv8tion
02-17-2012, 09:33 AM
I have found that once everything has settled in the peep should not rotate on the draw...A few years ago i would set up for rotation as that the strings back then would take quite awhile to settle. Today the strings and cables are of higher quality and built under more tension.. Hope this helps.

Jim570
02-17-2012, 09:53 AM
Stage One on my GT500. Peep comes straight back. H&M on a Hoyt. That peep also comes straight back. That string has not shot much more than a hundred arrows. Stage One has been shot a lot.

IRISH66
02-17-2012, 09:54 AM
My experience though limited is that like Dv8tion said once everything is settled it is usually ok. still maybe a little twist on some bows and zero on other ones!

wassaw
02-17-2012, 09:56 AM
I build my own. Usually when i see the peep rotate as the bow is drawn, it is from one of two things... 1- i rushed the string onto the bow, meaning that i should have let it set on the tensioner with XXXlbs longer( I blocked that out to keep that out of the debate if one starts) so that the twists in the string equaled out under the servings.
2- that i put on a serving in the opposite rotation of what the string needed. (this will cause the peep to all ways rotate a small amount when the bow is draw, where version one will equal out and allow the string to be twisted so that the peep does not rotate when the bow is drawn)
I think the quality of today's strings are much better and usually what your seeing is a result of a lot of tension being put on the end servings as they are wrapped.

if you want to remove the peep rotation you can build a rail to tension the string for a day or two. (you might have to add a twist or two after doing this to get the string to proper spec at 100 lbs tension)
JMHO

Goatboy
02-17-2012, 10:02 AM
I have had numerous sets of Stage 1 Strings and never had a bit of peep rotation on any set, even after 2 years of shooting.

TMax27
02-17-2012, 10:04 AM
Sounds like I'm actually putting the strings in a 'bind' of sorts by setting the bow up this way, actually causing un-needed rotation. Instead of using half twist/untwists of the shoot string to get the peep to proper alignment, I've been forcing the peep into alignment using my dloop. This is not the relaxed or neutral postion for the string when its drawn.

I wonder if this has any adverse effects to string life, tuning, or shootability?

wassaw
02-17-2012, 10:12 AM
rotating the D-loop while cause the Center Serving to loosen and possible change the nock height ( when done several times or over and over)

i do it also at times but usually it is one slight offset movement then it stays there. (meaning i move the D-loop a 1/8 turn to be straight with the peep and then leave it there. )

TMax27
02-17-2012, 10:32 AM
rotating the D-loop while cause the Center Serving to loosen and possible change the nock height ( when done several times or over and over)

i do it also at times but usually it is one slight offset movement then it stays there. (meaning i move the D-loop a 1/8 turn to be straight with the peep and then leave it there. )

Once the dloop is set, bringing the peep into correct eye alignment rotation, it doesn't spin or rotate on the serving.


I'm doing what you do, but much more drastically, you are doing minor corrections where I'm sometimes doing a 1/4 turn. I clearly see now, this is not the correct way to do it.

pbuck
02-17-2012, 10:37 AM
I've had this happen a couple times. Just recently I had one turn a full 1/4 turn and asked for a replacement. The new one never moved an bit from the time it was installed.

Just for info Wassaw. You say if one turns to stretch it for a day. Under how much tension would you recommend it be left for that time or is that the xxx amount you don't want to mention?

TMax27
02-17-2012, 11:06 AM
[QUOTE=pbuck;490153]I've had this happen a couple times. Just recently I had one turn a full 1/4 turn...QUOTE]

I guess I've been fortunate, once set, I've haven't ever had them change thier amount of rotation, from all the various builders.

wassaw
02-17-2012, 11:07 AM
i go up around 200 and let it sit like that over night. usually i need to add 1-2 twist to get it back to proper length at 100lbs which is what i use to spec the string length.

this is only when i know something is going on under the serving. ( the peep is straight and proper when at brace but when drawing back it twists off center)


if the peep is a 1/4 turn off at brace and is the same at full draw, i just add a twist or subtract a twist from the string to get it centered. ( you don't need to put that on a tensioner to correct)

pbuck
02-17-2012, 11:29 AM
Thanks. On the string I just got the peep was 1/4 turn off at brace but came around at full draw.

wassaw
02-17-2012, 12:27 PM
remember that these guys building the strings are making them to spec "without" a peep in. the peep takes off length when you insert it between the strands. AND when you insert the peep you need to make sure you have "balanced" strands on either side of the peep. you can see when you split the strands if one strand is coming from a different area, it will be overlapping other strands. this can cause a turning also. twist rate i think is the word i'm looking for. even after the peep is put in and served that area may have a slightly different twist rate than the rest of the string and will need to balance out from shooting or stretching.

Peeps can be frustrating! ;)

Magilla
02-17-2012, 09:58 PM
I have only ever had bad peep rotation on one set of custom strings and that was from 60X who seem to have a good reputation. Maybe when a company gets busy they hurry them through a bit.

miller1
02-18-2012, 06:39 AM
i put my strings on and shoot them about 20 times then put my peep in and shoot it another 20 times and 1/2 twist if needed and it is usually set, most string makers are good, i have been using Vaportrail for a couple years and have had no problems at all.

YETI ARCHERY
02-18-2012, 09:25 AM
I've had this happen a couple times. Just recently I had one turn a full 1/4 turn and asked for a replacement. The new one never moved an bit from the time it was installed.

Just for info Wassaw. You say if one turns to stretch it for a day. Under how much tension would you recommend it be left for that time or is that the xxx amount you don't want to mention?

He was talking about putting it under 100 lbs of tension. The XXX part he is talking about is that there are several string makers that will start arguing over how much tension is needed to build strings properly. Some will use 100 lbs up to 350 lbs tension when building strings. I have talked to some that will stretch it at 300 lbs tension then back it down to 150 to serve it. It is a trial and error for the builder to figure out. What works for one does not always work for another. If the strings are not put under tension before serving or not left under tension long enough it can cause rotation for the peep. It happens to all of us that build strings. I have had some that it does not rotate and some where it does only a little and then settles out.

IRISH66
02-18-2012, 11:00 AM
Great thread !

elite
02-18-2012, 12:26 PM
My peep sits perfectly straight, never turns. Sorry to sidetrack the thread, just wondering what size peep everyone uses?