Primitive Archer

Main Discussion Area => Bows => Topic started by: Tortoise on April 07, 2012, 10:32:37 pm

Title: Limb thickness, and tillering questions
Post by: Tortoise on April 07, 2012, 10:32:37 pm
Hi
A couple things:

1. I'm progressing ever so slowly on my first osage/hickory longbow. I'm trying to go for around #50-55. I don't know what the proper limb thickness (not width) is for this weight on a pyramid bow. Could someone please help me sort this out? The current stats of the bow are:


2. Also, should I tiller the bow with the limbs the way they are, or tiller it after I thin them? Thanks  ;) I just want to do it right the first time instead of dealing with the stress of an issue.
Title: Re: Limb thickness, and tillering questions
Post by: George Tsoukalas on April 07, 2012, 10:38:13 pm
Are you only going to tiller from the sides? Jawge
Title: Re: Limb thickness, and tillering questions
Post by: bubby on April 08, 2012, 12:01:32 am
what is your front profile/ measurement's at fades and tips, will make a differance on finished thickness, Bub
Title: Re: Limb thickness, and tillering questions
Post by: Tortoise on April 08, 2012, 01:20:06 am
Quote from: bubby on April 08, 2012, 12:01:32 am
what is your front profile/ measurement's at fades and tips, will make a differance on finished thickness, Bub

Sorry I forgot to put that in there  :P The entire length is 72", the limbs are 31" at the end of each fade.
Title: Re: Limb thickness, and tillering questions
Post by: bubby on April 08, 2012, 01:59:04 am
how wide across the back of the bow is it, maybe and inch and 3/4 strait taper to half inch tip's?
Title: Re: Limb thickness, and tillering questions
Post by: Tortoise on April 08, 2012, 02:09:49 am
Quote from: bubby on April 08, 2012, 01:59:04 am
how wide across the back of the bow is it, maybe and inch and 3/4 strait taper to half inch tip's?
The back (and belly) is 2 1/2" wide across. The limbs are 3/4" thick at the moment with a 1/8" hickory backing strip. The tips are 1/2" wide. I'll add all this info to the original post as well.
Title: Re: Limb thickness, and tillering questions
Post by: bubby on April 08, 2012, 04:10:41 am
most of my pyramid's are 66" ttt, one and three/quarters to two inches wide at the fades and i start with a limb thickness of 1/2" even thickness from fade to tip, 2 1/2" is really wide for osage and you might want to reduce the fade width to 1 3/4", at the present width it's gonna get real thin and you'll probablly end up side tillering anyhow, Bub
Title: Re: Limb thickness, and tillering questions
Post by: Tortoise on April 08, 2012, 04:17:48 am
But 1/2" thick is good for what I have currently, right? Also could you tell me what side tillering is, I'm not sure
Title: Re: Limb thickness, and tillering questions
Post by: bubby on April 08, 2012, 03:52:55 pm
1/2" should be good to start, side tillering is when the scraping to drop #'s is done buy scraping from the side's of the bow, but i rarely do this myself, Bub
Title: Re: Limb thickness, and tillering questions
Post by: Tortoise on April 08, 2012, 04:29:46 pm
Quote from: bubby on April 08, 2012, 03:52:55 pm
1/2" should be good to start, side tillering is when the scraping to drop #'s is done buy scraping from the side's of the bow, but i rarely do this myself, Bub
Okay thank you so much, I'm out working on it right now  :)