Rule of Thumb about Strings

Started by D.A. Davis, August 03, 2009, 12:48:00 PM

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D.A. Davis

What's a good rule of thumb about how many strands of dacron to use when making a string?  I'll be shooting something in the mid-40's weight range.  Also, when measuring for a string, I know it's 4 inches shorter than the length for a recurve and 3 inches shorter than the length for a longbow.  What about a hybrid longbow?  Is it the same as any longbow?

D.A.
Genesis 21:20 - "And God was with the lad; and he grew, and dwelt in the wilderness, and became an archer"

bigcountry

I follow 12 strands for up to 35lbs, 14 strands, 35-50lbs, and 16 strands for 50-65lbs.  I know some guys go 2 strands more for each set of wieghts.

Jeremy

I've been shooting 12 strand (loops padded to 14) for ~60# 30".

If the bow was made to AMO specs, the string needs to be 3" shorter than the AMO length, regardless of if it's a recurve or longbow!

Most bows, even those marked "AMO" aren't made to AMO standards though.  It's best to measure the string on the bow when it's at the proper brace, then make the new string to that length.
>>>-TGMM Family Of The Bow-->
CT CE/FS Chief Instructor
"Death is not the greatest loss in life.  The greatest loss is what dies inside us while we live." - Norman Cousins

Bjorn

I am a skinny string fan for self bows especially. The only material I know well is D97. 6 strands is perfect for a 50-55# bow. Pad the loops to 14 or 16 and taper the ends-you will love the result.

Canadabowyer

Bjorn,how do you pad the skinny string to fit your arrow nocks? Same as the loops?
"non illegitimus carborundum est"

Hermann From Bavaria

my rule of thumb for dacron is:

drawweight divided with 4 is the number of strans.

i.e. 60#bow = 15 strands (then i use 14)

mfg
in past even the future was better, so what do you want?

kodiakkid

I use B50 string material and 12 strands 40-50  14 strands 50-60
Always strive to do the right thing. Don't beat yourself down when you mess up. Ask for forgivness and keep on keeping on.

Jesse Peltan

For all bows you take bow weight times 5 divided by strand strength. On dacron the strand strength is about 25# so for a 50# bow 250/25 is 10. On b-50 you can also use the trick of bow weight divided by 5.

Bjorn

Canadabowyer, some folks like to double serve; I lay in strands under the serving to get a perfect nock fit.

Jeremy

Bjorn, how are you laying the strands under the serving?  Every way I've tried it I get a cabling effect.
>>>-TGMM Family Of The Bow-->
CT CE/FS Chief Instructor
"Death is not the greatest loss in life.  The greatest loss is what dies inside us while we live." - Norman Cousins

Bjorn

Hi Jeremy, I will be wearing that beautiful Damascus this fall!
By 'cabling effect' do you bean the strands wrap themselves around the string?
If so, that's what you want. 4 strands of D97 and an .021 serving thread works for me. I taper the serving area and only serve max 6 in.

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