Author Topic: 3 under symmetrical or not ?  (Read 253 times)

0 Members and 1 Guest are viewing this topic.

Offline Fox

  • Member
  • Posts: 522
3 under symmetrical or not ?
« on: January 23, 2021, 02:38:08 pm »
Iíve started shooing 3 under instead of split finger... and Iím wondering if I should make the bottem limb longer or not? Or if I should tiller differently ? Thanks


-Fox
Love:
the Forests
the mountains
the streams
the Creatures

Offline Pat B

  • Administrator
  • Member
  • Posts: 35,207
Re: 3 under symmetrical or not ?
« Reply #1 on: January 23, 2021, 02:40:41 pm »
Symmetrical or not 3 under shouldn't matter if tillered correctly.
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline Fox

  • Member
  • Posts: 522
Re: 3 under symmetrical or not ?
« Reply #2 on: January 23, 2021, 02:42:45 pm »
Okay so I shouldnít need the bottom limb longer to compensate for the added stress on the bottom limb ?
Love:
the Forests
the mountains
the streams
the Creatures

Offline Hamish

  • Member
  • Posts: 994
Re: 3 under symmetrical or not ?
« Reply #3 on: January 23, 2021, 04:40:28 pm »
 For practical purposes there is almost never a reason to start a bow intentionally to make the lower limb longer(it can be done, as an after thought in an emergency though, in certain situations). If the wood's quality is evenly resistant to bending the whole length, the longer limb will automatically bend further and be weaker. Not what you are after in the lower limb.

3 under means the centre of the pull will be lower on the handle than it is on split finger, when drawing . The tiller should look even in a drawn bow, no matter the style of limb design(maybe a little stiffer in the lower limb, which is prone to take a more strain). Where you place the hook on the tillering tree for 3 under needs to be lower than where it needs to be  for a split draw.




Offline Fox

  • Member
  • Posts: 522
Re: 3 under symmetrical or not ?
« Reply #4 on: January 23, 2021, 04:53:34 pm »
For practical purposes there is almost never a reason to start a bow intentionally to make the lower limb longer(it can be done, as an after thought in an emergency though, in certain situations). If the wood's quality is evenly resistant to bending the whole length, the longer limb will automatically bend further and be weaker. Not what you are after in the lower limb.

3 under means the centre of the pull will be lower on the handle than it is on split finger, when drawing . The tiller should look even in a drawn bow, no matter the style of limb design(maybe a little stiffer in the lower limb, which is prone to take a more strain). Where you place the hook on the tillering tree for 3 under needs to be lower than where it needs to be  for a split draw.

Thanks Hamish. Thats what I wanted to hear  :D
Love:
the Forests
the mountains
the streams
the Creatures