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Re serving my center serving

4K views 12 replies 13 participants last post by  Jhunts  
#1 ·
I was shooting yesterday and noticed my serving between my nock sets was starting to unravel i guess a nock cut it or something..anyway I reserved it last night got my peep straight tied dloop on but when I draw back my peep rotates 90° im wondering if I served too tight and twisted the string I noticed when I was serving my peep did spin so I had to flip it when I was finished im gunna try it again later im guessing when I remove the center serving the string will twist back to where it was...I did serve in the direction the string was twisted so I wasnt unraveling the string as I was serving but I didn't think serving tight and the string twisting a little would make a big impact but I guess it does
 
#2 ·
It's easy to serve with a bit too much gusto. May have put a little additional twist in the string... I say shoot it for a few shots... maybe a hundred or so. Kindof like getting a new string to settle in when installed... it will work itself back to where the fibers and strands lay "naturally". Then, re-adjust your peep and nock if necessary.
 
#3 ·
90 degrees is a ton...sounds like you are correct in your thought. I’m assuming you’re serving it under much less tension than 300 pounds. If you can’t put it under tension you could try to add a few twists to your string to see if that helps or maybe even un-serve it take twists out of your string serve it then put them back in to see if something like that helps. I would try to get it much better and then give it time to settle. Let us know how you make out!
 
#4 ·
Are you serving the string while it’s on the bow? It works much better to take the string off the bow and do your center serving with the string under a lot more tension. I do mine at 250 lbs on a stretching jig, 300-400 lbs would be even better but 250 is about the limitation of my jig without worrying about bending something. I know John Dudley has a video out there of him doing it on the bow, but you run the risk of causing uneven twist in the string when you do that. As you serve you will be moving the twist in the string more to one end and then that twist is going to gradually even itself out over time, causing never ending peep rotation.
 
#5 ·
It's VERY difficult to serve a string on the bow and get it tight enough to hold without causing the string to twist way too much. Most string builders use a minimum of 300lbs of tension on a string when serving, which is much more than the bow applies to the string. I've done it on a bow successfully a few times but it was a PITA and I had another guy hold the string from twisting as I spun the bobbin. It was enough for an emergency fix while a guy was in KS on a hunt so he could get back to the stand after a quick tune and sighting back in but I made him a whole new string that night knowing that the temporary fix likely wouldn't hold up long term.
 
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#7 ·
This is why a custom string builder will NEVER EVER install a center serving, with the bowstring on a bow.
Just not enough tension, to prevent the bowstring bundle from TWISTING while installing the end servings, while installing the center servings.

Just 6 lbs of serving tool drag force,
needs about 300 lbs of tension on a bowstring stretcher, to be tight enough for stretching power,
to prevent just only 6 lbs of serving tool draw force.

If your serving tool drag force is 7 lbs, then you need 360 lbs of stretching tension to prevent the bowstring from twisting, while you are spinning the serving tool. 70 lb bow might have at most, 210 lbs of tension.

Take the bowstring off the bow.
Use a draw board to provide stretching tension. Boat winch is SUPER handy for stretching purposes.



Use an adjustable chain link in each bowstring end loop. Anchor one end of the bowstring.
Attach boat winch from draw board to the other end of the bowstring.



I use a spring scale (no batteries required, and SUPER reliable, dead accurate). Stretch to 300+ lbs of tension.
Great time to rub in some string wax, and scrape off the excess wax, using a loop of serving thread. Wrap around once and pull on the tag ends. This also evens out the tension in each and every strand.

Peep rotation is UN-equal tension in the strands.



Slide in a short length of bowstring material, or serving thread
in between the two colors (pull out the peep, before stretching).

So, while spinning the serving tool, with bowstring at 300+ lbs of tension,
keep your eye on the FLAG of serving thread. The serving thread should not be wagging at you much.
If the serving thread FLAG is spinning around and around, DROP/LOWER the serving tool tension (drag)
and INcREASE the stretching tension up to 350 lbs.

Helps to also CLAMP the bowstring, to the left and to the right of the area you are serving.



Clamp the string lightly, and these clamps PLUS the 350+ of stretching tension
will make it impossible for the bowstring bundle, to rotate while you are spinning the serving tool.
THIS is the secret to a ZERO peep rotation bowstring.
 
#13 ·
This is why a custom string builder will NEVER EVER install a center serving, with the bowstring on a bow.
Just not enough tension, to prevent the bowstring bundle from TWISTING while installing the end servings, while installing the center servings.

Just 6 lbs of serving tool drag force,
needs about 300 lbs of tension on a bowstring stretcher, to be tight enough for stretching power,
to prevent just only 6 lbs of serving tool draw force.

If your serving tool drag force is 7 lbs, then you need 360 lbs of stretching tension to prevent the bowstring from twisting, while you are spinning the serving tool. 70 lb bow might have at most, 210 lbs of tension.

Take the bowstring off the bow.
Use a draw board to provide stretching tension. Boat winch is SUPER handy for stretching purposes.



Use an adjustable chain link in each bowstring end loop. Anchor one end of the bowstring.
Attach boat winch from draw board to the other end of the bowstring.



I use a spring scale (no batteries required, and SUPER reliable, dead accurate). Stretch to 300+ lbs of tension.
Great time to rub in some string wax, and scrape off the excess wax, using a loop of serving thread. Wrap around once and pull on the tag ends. This also evens out the tension in each and every strand.

Peep rotation is UN-equal tension in the strands.



Slide in a short length of bowstring material, or serving thread
in between the two colors (pull out the peep, before stretching).

So, while spinning the serving tool, with bowstring at 300+ lbs of tension,
keep your eye on the FLAG of serving thread. The serving thread should not be wagging at you much.
If the serving thread FLAG is spinning around and around, DROP/LOWER the serving tool tension (drag)
and INcREASE the stretching tension up to 350 lbs.

Helps to also CLAMP the bowstring, to the left and to the right of the area you are serving.



Clamp the string lightly, and these clamps PLUS the 350+ of stretching tension
will make it impossible for the bowstring bundle, to rotate while you are spinning the serving tool.
THIS is the secret to a ZERO peep rotation bowstring.
Dude thank you for this explanation. I went to redo my serving multiple times on the bow and it's just not gonna cut it. I'll do your method thanks
 
#9 ·
I just reserved a string on my bow. I put a brass rod through my peep and let it rest on the riser so that the string couldn't twist while I served. Worked well for me and the peep was still perfect when I was done.
 
#11 ·
Good thread, never thought of using my draw rig.

Like JPR79, I reserve my string on the bow, and have for decades. Yep, if you don't have a way to keep the string from rotating, it rotates.

I use a pair of surgical clamps placed on the string about 1" apart, and move the clamps as I serve down the string. It works just fine, and I rarely have a problem. When I have a problem, I unwind and start over. I shoot my Hoyt collection off the string, no loop, so I get a fair amount of practice. When I travel for a hunt, I take the clamps and serving jig, ya never know. More than once I've rescued somebody's cable or string when it started to unravel.