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-   -   Serving Jig (https://www.huntingnet.com/forum/crossbows/175818-serving-jig.html)

awshucks 01-17-2007 03:14 PM

Serving Jig
 
Decidied to start reserving my own strings, so needed something to stretch the strings. Built this jewel in about 1/2 hr. lol. Now my problem is two fold. I don't know how tight to stretch them, or how much tension to put on the serving spool. My first attempt [buddies string, lol] when I got to the end where you serve over a loop to pull bitter end back thru, I had the serving so tight I broke the loop pulling, now I have no idea where the end actually is, lol. Here ya go:


awshucks 01-17-2007 03:17 PM

RE: Serving Jig
 
Here's a better view of the right end. The distance between the two uprights is 45".


Hotburn76 01-17-2007 03:34 PM

RE: Serving Jig
 
Looks good Dan! I know when the guy reserves mine he has to pull about as hard as he can to pull the loop back under. Buy this I mean he braces his feet and takes a lean posture and such. But I have never seen him pull hard enough to break the serving. I would say if you pulled it half way under it should be good since that is what it seems like he does, but then his tail is left and just nips it off. But then again you should have a spool of the stuff just take it off and try it again! The jig looks good!

Pydpiper 01-17-2007 03:41 PM

RE: Serving Jig
 
That thing makes mine look like a toy... I guess I had better get some bigger wood..lol

shewe 01-17-2007 03:48 PM

RE: Serving Jig
 
nice jig. let me ask.....what type of thread and thickness do you use on xbow servings. used to use mono on vertical bows.....but not sure what to use on xbow strings.:eek:

awshucks 01-17-2007 08:29 PM

RE: Serving Jig
 

ORIGINAL: shewe

nice jig. let me ask.....what type of thread and thickness do you use on xbow servings. used to use mono on vertical bows.....but not sure what to use on xbow strings.:eek:
Dunno, lol. called Danny Miller up and he sent me a serving spool loaded to go. I'm sure I got good stuff, just because of the source.

Pydpiper 01-18-2007 06:25 AM

RE: Serving Jig
 
Dan, have you figured out what kind of tension is required on the string during the serving process?
I have an old fish weighing scale that I may mount to one end to monitor the tightness for consistency..

awshucks 01-18-2007 07:19 AM

RE: Serving Jig
 

ORIGINAL: Pydpiper

Dan, have you figured out what kind of tension is required on the string during the serving process?
I have an old fish weighing scale that I may mount to one end to monitor the tightness for consistency..
No, haven't figured out the tension thing yet. It's adjusted by a bolt and wing nut which goes thru the center of the spool. I don't see any way to use your idea. The spool holder has two bars that the string wraps around, otherwise it would be just like a spool of thread that you keep "rolling" around your bow's string. I think I figured it out. The factory serving seems to be about 4" [guesstimate] wide. The rail is about 1 1/2" wide, so the start and finish of serving is kinda immaterial. I'm gonna wind the next one as tight as I can, and then when I get to other end and go to serve over then loop that pulls the bitter end back under the last 1/2" or so, I'm gonna loosen the tension some. Dnk oughta be along w/ some tips soon, lol Just dawned on me, you might be asking about the tension on the bow string vs serving string. I figure all the tension I can get on bow string is a plus, as the vert crowd reservers their on the bow while strung.

Pydpiper 01-18-2007 07:25 AM

RE: Serving Jig
 
lol.. I meant the tension on the string, not the serving.. A scale in place of one of your threaded hooks on your jig, not the spool..:D

My serving string is #150, .036Dia. Made by Brownell & Co.

martinfaw 01-18-2007 10:56 PM

RE: Serving Jig
 

ORIGINAL: awshucks

Decidied to start reserving my own strings, so needed something to stretch the strings. Built this jewel in about 1/2 hr. lol. Now my problem is two fold. I don't know how tight to stretch them, or how much tension to put on the serving spool. My first attempt [buddies string, lol] when I got to the end where you serve over a loop to pull bitter end back thru, I had the serving so tight I broke the loop pulling, now I have no idea where the end actually is, lol. Here ya go:


Awshucks theres a better way, when you get to the end you pull off about 8 inches of serving, go out on the string about 6 inches and wind
about 10 loose loops the opposite way you wound serving, now hold the serving on the spool next to the serving and start wrapping both, as you do this you will unwind the loops you put on when they are all gone you pull on the spool.This method lets you wrap the end tighter and you are only pulling one end thru. Put a string on your jig and practice untill you get it right hope this helps.
If its on a excalibur i twist the string a few rounds more than it needs
that makes it smaller and when you take them out it tightens the serving.
I wind the serving as tight as I can.

Martinfaw




Dnk 01-19-2007 10:50 AM

RE: Serving Jig
 
If you don't like Marinfaw's method which is the traditional method try this. Get a braided serving, I use a crown serving which is slippery and strong. I use a soft bow string wax to wax the loop and the string where the loop is going and then use six turns over top of the loop then cut off just enough. I've found that its better if you put only one third of the tag end through the pulling loop and then yank it through. Then I use brake clean or alcohol to remove some of the wax then use liquid crazy glue to where the tag end goes under the serving.
I use both the brownell and bcy crossbow serving. The bcy is called kite cord. You don't have to use these serving material. I've found that others at least .026 or thicker works ok (but not as good) and I suspect that you can lighten the string if you use a thinner and lighter serving for more speed. On a vert bow it makes a good difference when you lighten the string. I could only imagine that its easier on the limbs as well.
One thing to keep in mind. Serve the string so that when you twist the string to adjust brace height you tighten the serving.
Oh yeah, you just have to hold on to the string with your hands to stop the string from twisting like crazy when you wrap your serving.

awshucks 01-19-2007 12:59 PM

RE: Serving Jig
 

ORIGINAL: Dnk

If you don't like Marinfaw's method which is the traditional method try this. Get a braided serving, I use a crown serving which is slippery and strong. I use a soft bow string wax to wax the loop and the string where the loop is going and then use six turns over top of the loop then cut off just enough. I've found that its better if you put only one third of the tag end through the pulling loop and then yank it through. Then I use brake clean or alcohol to remove some of the wax then use liquid crazy glue to where the tag end goes under the serving.
I use both the brownell and bcy crossbow serving. The bcy is called kite cord. You don't have to use these serving material. I've found that others at least .026 or thicker works ok (but not as good) and I suspect that you can lighten the string if you use a thinner and lighter serving for more speed. On a vert bow it makes a good difference when you lighten the string. I could only imagine that its easier on the limbs as well.
One thing to keep in mind. Serve the string so that when you twist the string to adjust brace height you tighten the serving.
Oh yeah, you just have to hold on to the string with your hands to stop the string from twisting like crazy when you wrap your serving.
I see! [says the blind man] lol. Can't picture Martinfaws way, though I thank him for his time. Good tips, Don. I redid the one serving already and still had to pull real hard on the ends of the loop, but bet less matl and lube will make it a breeze. Thanks.

Dnk 01-19-2007 01:03 PM

RE: Serving Jig
 
Here you go you silly man!

http://www.applearchery.com/stringserving.htm

Dnk 01-30-2007 11:43 AM

RE: Serving Jig
 
Ok guys, the carpenter made a serving string jig out of wood. Guess what I made mine from?


Rebel Hog 01-30-2007 01:46 PM

RE: Serving Jig
 

ORIGINAL: Dnk

Ok guys, the carpenter made a serving string jig out of wood. Guess what I made mine from?
Dang! You have Gussets on thatjig to stretch Ship Cable!:D:D:D:D

Looks good Don!!

Rebel Hog 01-30-2007 01:51 PM

RE: Serving Jig
 

ORIGINAL: Dnk

Here you go you silly man!

http://www.applearchery.com/stringserving.htm

That lookslikehow I do itto serve Eyes on Fishing Rods!;)

awshucks 01-30-2007 05:12 PM

RE: Serving Jig
 

ORIGINAL: Dnk

Ok guys, the carpenter made a serving string jig out of wood. Guess what I made mine from?
Nice job, except for the lack of paint, lol. Candy Apple Red would be nice!!

Pydpiper 01-30-2007 05:35 PM

RE: Serving Jig
 
Mine is a made from assorted stuff.. If I do manage to bend it I will try again with something stronger, so far so good though..



Dnk 01-30-2007 05:39 PM

RE: Serving Jig
 
Looking good David. Why are the brackets turned the other way.
It would save space.
Turn buckle is a great idea.

Pydpiper 01-31-2007 07:02 AM

RE: Serving Jig
 
How did I miss that?? :) It would also be stronger the other way. I will turn them around later on, the 2X4 has already begun to twist anyways.
Thanks..


ORIGINAL: Dnk

Looking good David. Why are the brackets turned the other way.
It would save space.
Turn buckle is a great idea.

Dnk 01-31-2007 07:07 AM

RE: Serving Jig
 
David, buy some 1" steel tubing, hardware and come to the shop some weekend and we'll make one!

Pydpiper 01-31-2007 07:18 AM

RE: Serving Jig
 
I just may take you up on that..
I would have an easier time getting away during the week though..;)
A tad apprehensive about being more that 20 minutes from the house here, but that trip is undoubtedly in my near future.

One thing I would like to change is making the uprights adjustable, allowing one to slide closer to the next for working shorter strings, like my Daco's. I have used a short length of chain to close the gap, and it works, but an adjustable jig would be pretty slick too.

Dnk 01-31-2007 07:55 AM

RE: Serving Jig
 
David, how much are you going to shoot the Daco?

Pydpiper 01-31-2007 10:06 AM

RE: Serving Jig
 
Likly not too much, it is stripped down right now in the shop, I am going to modify the stock to fit my sons shoulder.
I see what you are sayin though..


ORIGINAL: Dnk

David, how much are you going to shoot the Daco?


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