Primitive Archer

Main Discussion Area => Bows => Topic started by: DC on December 27, 2014, 01:47:11 pm

Title: Bottom limb bend
Post by: DC on December 27, 2014, 01:47:11 pm
I've noticed many times that in the full draw pictures that the bottom limb seem to be bent more. I know it's not faulty tiller because of the people that are posting them. Is this a camera angle thing or hand position or am I imagining it?
Title: Re: Bottom limb bend
Post by: Del the cat on December 27, 2014, 02:08:13 pm
Bottom limb is shorter as some of it is taken up with the grip, this often results in it having to bend a little more to give an even tiller. Conversely some people leave it stiffer to help compensate.
There are also some camera angle issues with bows... if you photograph leaning in a corner, the lower limb gets foreshortened unless you bend down to get the camera level with the grip.
Del
Title: Re: Bottom limb bend
Post by: burchett.donald on December 27, 2014, 03:28:37 pm
   Del is correct, but also string angle plays a huge part. Because of nocking point and an arrow pass above center the string angle on the lower limb becomes sharper...
                                                                                                         Don
Title: Re: Bottom limb bend
Post by: bradsmith2010 on December 27, 2014, 05:48:55 pm
i dont really measure the positive tiller at brace,, self bows that are not so straight will fool you,, I like the positive tiller to be at full draw,,, if the bottom limb is weaker at full draw I will adjust it,, unless it is just shooting great,,, :) and it will have the appearance of being a bit stiff,,
Title: Re: Bottom limb bend
Post by: wizardgoat on December 27, 2014, 11:01:33 pm
I noticed this on some of my first bows too. Looked fine on the tiller tree, but changed in my hand.
try to get your last few inches of draw with your bow in hand, in front of the mirror or take photos.
Title: Re: Bottom limb bend
Post by: mullet on December 27, 2014, 11:10:57 pm
I noticed this on some of my first bows too. Looked fine on the tiller tree, but changed in my hand.
try to get your last few inches of draw with your bow in hand, in front of the mirror or take photos.


I use my wife, she has been around a lot of good Bowyers. :) And, I usually leave my bottom limb a little tighter then the top, it takes more stress over the long haul.
Title: Re: Bottom limb bend
Post by: Danzn Bar on December 28, 2014, 11:01:51 am
I noticed this on some of my first bows too. Looked fine on the tiller tree, but changed in my hand.
try to get your last few inches of draw with your bow in hand, in front of the mirror or take photos.


Yep.....That right there helped my tillering efforts 100%........the last 3-4" in the hand, with my wife taking pictures. 
DBar
Title: Re: Bottom limb bend
Post by: Springbuck on December 28, 2014, 11:28:45 am
   Del is correct, but also string angle plays a huge part. Because of nocking point and an arrow pass above center the string angle on the lower limb becomes sharper.

  If I understand right, this is really often just an optical illusion.  The bottom limb can be bending less than the top and still look like this.

I do try for positive tiller, but often, as mentioned with bows from imperfect staves, I can often feel better than see it.