Primitive Archer

Main Discussion Area => Bows => Topic started by: DC on July 21, 2018, 05:48:46 pm

Title: String length
Post by: DC on July 21, 2018, 05:48:46 pm

For a 66-68" bow how much do you have to change the string length to change the brace height by an inch? I think it will be easier on my hands to move the nock rather than make another string. :)

Title: Re: String length
Post by: Pat B on July 21, 2018, 06:48:28 pm

Twist it up 10 times and check. An inch is a pretty good bit to make up by twisting though. Is this a Flemish twist string?

Title: Re: String length
Post by: DC on July 21, 2018, 06:53:32 pm

Yes it's Flemish. The string is too short so I was going to move the nocks in. But you're right. If I twist it up 10 turns and measure the change in string length and then measure the change in brace height it will give me the info I need to sort it out.
Thanks

Title: Re: String length
Post by: Pat B on July 21, 2018, 06:57:14 pm

Let us know how it works out.

Title: Re: String length
Post by: DC on July 21, 2018, 07:08:34 pm

Yup, but I think it will be one of those gradually changing things where every little thing changes it some.

Title: Re: String length
Post by: Eric Krewson on July 21, 2018, 07:13:45 pm

If you twist it up 10 times it will get even shorter, make another string. Cutting new nocks will up the poundage and may throw the tiller off.

Title: Re: String length
Post by: DC on July 21, 2018, 07:52:21 pm

I would make another but it's three hours since I made it and my hands still hurt. Take my advice, don't get old :D :D

Title: Re: String length
Post by: Eric Krewson on July 21, 2018, 09:43:17 pm

I am 70, I don't like making strings but sometimes you have to.

I have arthritic hands and bad carpal tunnel problems in my hands from 20 years of working down osage staves with drawknives. I worked a lot in my shop this afternoon and will have to wear my wrist braces when I go to bed tonight or my hands will go painfully numb and keep me awake.

Title: Re: String length
Post by: Del the cat on July 22, 2018, 03:53:03 am

Make continuous loop strings, relatively quick and easy, served loops, right length every time if you use and long string and Del's patent ;) adjuster first to get the right length.
Del

Title: Re: String length
Post by: George Tsoukalas on July 22, 2018, 07:20:25 am

70 here too, DC. Thank God. Are you twisting the whole string or just the loops and down to just beyond the tag ends which is what I do? Jawge

Title: Re: String length
Post by: Dances with squirrels on July 22, 2018, 08:41:59 am

You can make strings with a timber hitch on one end.

Title: Re: String length
Post by: DC on July 22, 2018, 08:54:42 am

You win Eric. I'm just a wuss. I could have it way worse ;D ;D
You know, it might be time to convert to continuous. Way easier on the hands :) I just like the look of Flemish.
Just twisting the ends as little as I can :)
I've never had good luck with timber hitches. Even with all the fixes they still seem to slip on FF

Title: Re: String length
Post by: bushboy on July 22, 2018, 09:01:23 am

I use 9 strands made into 3 bundles to make a rope ,spliced in a loop.this is a old b55 string that I didn't bother to serve.all the twisting is done with a cordless drill,something I came up with.

Title: Re: String length
Post by: DC on July 22, 2018, 12:45:14 pm

Quote from: Pat B on July 21, 2018, 06:57:14 pm

Let us know how it works out.

Not well. Whether the string is still settling in or what but I would add 10 twists and the BH would go up and then over 15 min go back to where it was. I started at almost 0 twists so maybe not much happens in the first 20 twists. I'll let it soak for a while and see.