Primitive Archer

Main Discussion Area => Bows => Topic started by: upstatenybowyer on September 13, 2018, 07:30:34 pm

Title: Tiller check? :)
Post by: upstatenybowyer on September 13, 2018, 07:30:34 pm
Should I get the mid to outers working a bit more? Particularly the bottom limb?

All opinions welcome.  :)
Title: Re: Tiller check? :)
Post by: Icegomen on September 13, 2018, 08:48:11 pm
I am very pleased to be a member here. In order for me to access the data fully.
Title: Re: Tiller check? :)
Post by: DC on September 13, 2018, 11:15:48 pm
I would work on the outers. Those aren't really recurves they are reflexed limbs. They should straighten out.
Title: Re: Tiller check? :)
Post by: Badger on September 13, 2018, 11:37:09 pm
  I think your tiller is just about perfect for that unbraced profile. If you allow them to straighten out they will take some set and raise your string angles. I bet it shoots very fast where you have it now.
Title: Re: Tiller check? :)
Post by: Stick Bender on September 14, 2018, 02:39:59 am
 I think your string angle looks awsome I agree bet its fast , these R/D bows can be deceptive especialy with short bows  if you change that angle you lose all your performance maybe Ben will chime in he has a keen eye for tiller on these ,looks great to me if it where mine !
Title: Re: Tiller check? :)
Post by: leonwood on September 14, 2018, 05:14:01 am
Fulldraw looks pretty good to me, the real challenge with this shape is narrowing the outers without losing stability. If you do it right you will have a real smooth and very fast bow!
And what Badger said is true. You can clearly see the transition from the deflex to the reflex from the top limb in the fulldraw pic. This is a tricky spot with these bows and you can easily kill all the performance by overstressing that part.
Title: Re: Tiller check? :)
Post by: upstatenybowyer on September 14, 2018, 05:43:53 am
Thanks guys. I've found these bows to be particularly tricky to tiller for all the reasons you've pointed out. I REALLY appreciate your input, as it takes a lot of work to get to this point and it will be great if it ends up worth the effort.
Title: Re: Tiller check? :)
Post by: PEARL DRUMS/PEARLY/PD/DRUMS on September 14, 2018, 06:44:12 am
  I think your tiller is just about perfect for that unbraced profile. If you allow them to straighten out they will take some set and raise your string angles. I bet it shoots very fast where you have it now.

I agree with Steve.
Title: Re: Tiller check? :)
Post by: bjrogg on September 14, 2018, 07:34:26 am
Looks wicked fast to me Jeff. I'm pretty sure your going to get that design figured out. Then you can help me out.
bjrogg
Title: Re: Tiller check? :)
Post by: George Tsoukalas on September 14, 2018, 07:49:24 am
Excellent tiller. Jawge
Title: Re: Tiller check? :)
Post by: Bayou Ben on September 14, 2018, 07:52:30 am
Yep, I agree with everything Badger said.  How's bracing it?  I don't see how that bow won't be a good performer.  Great work to get it to this point.  It's holding reflex really well.
Can't wait to see her finished up!

Title: Re: Tiller check? :)
Post by: Aaron H on September 14, 2018, 09:38:43 am
Looks good from here
Title: Re: Tiller check? :)
Post by: DC on September 14, 2018, 09:57:38 am
I defer to everyone else ;D ;D ;D How much more do you have to draw it?
Title: Re: Tiller check? :)
Post by: TimBo on September 14, 2018, 10:36:31 am
OK, I don't know anything (how's that for a disclaimer), but is the bottom limb straightening out jussstt a bit more than the top one? 
Title: Re: Tiller check? :)
Post by: DC on September 14, 2018, 10:46:47 am
Does anyone have any photo editing software and skills? I would like to see the three pictures overlaid on each other.
Title: Re: Tiller check? :)
Post by: upstatenybowyer on September 14, 2018, 02:52:55 pm
Thanks for all the input fellas.

DC, it's pulling 45# @ 27" which is full draw for me. It's a little less weight than I was shooting for so I'm glad to hear the tiller looks okay to everyone.

I have made plenty of mistakes and had lots of failures with this design BJ, so if I can be of any help it'll be advice on what not to do!  (--) Pearly and Ben (amongst many others) know a ton and have helped me a lot.

Ben, at first it wasn't easy to brace with all the early draw weight. It's not so bad now. That early draw weight can be deceiving, which has lead to a few coming out dramatically underweight.

I've looked at that bottom limb quite a bit TimBo and I think I've decided that if it is straightening out a bit more than the top I'm willing to accept it.

I'd like to see that too DC.
Title: Re: Tiller check? :)
Post by: ohma2 on September 14, 2018, 06:09:35 pm
Good lookin bow,put the finish on it .
Title: Re: Tiller check? :)
Post by: loon on September 22, 2018, 01:49:42 pm
not sure if the 3rd pic is at an angle, hopefully this isn't misleading
Title: Re: Tiller check? :)
Post by: ponyboy on September 22, 2018, 05:11:11 pm
I've never made a recurve, I've only made about six bows though, but can you just tiller it first, and then put the recurves in it with heat?
Title: Re: Tiller check? :)
Post by: upstatenybowyer on September 22, 2018, 07:36:30 pm
Wow loon that's pretty amazing.  8) Thank you very, very much! Now with the tiles as a reference, the bottom limb looks like its bending just a tad more mid limb. I suspected that, so as I was sanding I spent a little extra time in the middle of the upper limb. Hope that did the trick. Fingers crossed.

Ponyboy, with this type of bow I only tiller just a little bit once the billets are spliced together. Then I heat in the recurves, and glue in more reflex when I add the backing. When the glue is dry I finish off the tiller.
Title: Re: Tiller check? :)
Post by: DC on September 23, 2018, 02:23:41 pm
That's interesting that almost half of the tip travel is used up just bracing the bow. I'll have to look at this a bit. Thanks Loon :)