Primitive Archer

Main Discussion Area => Bows => Topic started by: Knoll on May 04, 2016, 03:49:57 pm

Title: bbo . . . tiller review
Post by: Knoll on May 04, 2016, 03:49:57 pm
This bbo is 66" long. Deflexed out of handle and just a bit of reflex. At full draw, but still need to reduce couple #'s.

Impression is that top limb needs bit more bend @ mid third. Whatcha think?

(http://i884.photobucket.com/albums/ac48/knolltop314/100_3607.jpg)

(http://i884.photobucket.com/albums/ac48/knolltop314/100_3609.jpg)

(http://i884.photobucket.com/albums/ac48/knolltop314/100_3611.jpg)

(http://i884.photobucket.com/albums/ac48/knolltop314/100_3612.jpg)
Title: Re: bbo . . . tiller review
Post by: bjrogg on May 04, 2016, 04:17:57 pm
Looking on my phone knoll it looks close I think I'd agree with your observation. Seems like if you gotta take some off that's the spot
Title: Re: bbo . . . tiller review
Post by: Del the cat on May 04, 2016, 04:34:26 pm
Yeah, it's pretty subtle, but I think you're right.
Just rounding off edges will prob' drop a tad.
Looks like it will bang out an arrow.
Del
Title: Re: bbo . . . tiller review
Post by: bubby on May 04, 2016, 06:12:25 pm
I agree with the other posts Mike
Title: Re: bbo . . . tiller review
Post by: Knoll on May 04, 2016, 06:32:50 pm
These limbs have been bit odd in that top limb has always appeared a bit stiff. But if I get it bending better then amount of negative tiller increases to almost an inch.
It is definitely the fastest bow I've had.
Title: Re: bbo . . . tiller review
Post by: PEARL DRUMS on May 08, 2016, 07:23:59 am
With so little reflex added your tiller will appear more elliptical than some RD bows would that have, say 3-4" of reflex added. I have one very similar in design, with a bit more reflex, but not much. I agree with your summation. Quite speedy and stupid smooth. I'll bring it to Marshall for comparison.
Title: Re: bbo . . . tiller review
Post by: bubbles on May 08, 2016, 11:45:59 am
Is there an advantage to having deflex combined with very little reflex?  Does it keep the wood fresher rather than arriving at that profile through set? I would expect it to be a bit slower because of the lack of reflex and possibly string tension at brace. I havnt delved into the deflexed bows yet, so I'm curious.
Title: Re: bbo . . . tiller review
Post by: PEARL DRUMS on May 08, 2016, 12:23:03 pm
I think fresh wood can be faster than reflexed wood. So yes, a bow that has tips behind its handle, that started behind its handle, can easily shoot faster than a bow that has tips in front of its handle 2" that may have started in front of its handle 5 or 6". i.e. whooped out wood. Deflex equals smooth, that's my biggest attraction to the design. Done right you barely notice that string hit home. Hard to equal that with a straight reflexed bow. 
Title: Re: bbo . . . tiller review
Post by: Knoll on May 08, 2016, 12:27:14 pm
Until this one, my bows have been pyramid profiles. So more of elliptical tiller is new adventure. Have been surprised how smooth it is even at this rough state of completion.
Title: Re: bbo . . . tiller review
Post by: bubby on May 08, 2016, 01:13:16 pm
Are tou bringing this one to Marshall Mike, I'm bringing my boo osage r/d with around 2" reflex we can compair the two
Title: Re: bbo . . . tiller review
Post by: Knoll on May 08, 2016, 07:59:50 pm
Yes, I am. Hopefully can get some assist with fashioning a great locator grip handle!
Title: Re: bbo . . . tiller review
Post by: bradsmith2010 on May 08, 2016, 08:59:47 pm
could someone show me an example of a bow with tips behind the handle shooting faster than a bow with tips in front of the handle,, I have never understood that,, I am from old school where the  finished profile dictates the performance,,?? I understand the concept , but have never seen it in real life,,Marcs bows shoot pretty fast, and I don't think I have seen any with tips behind the handle,, for example

Title: Re: bbo . . . tiller review
Post by: PEARL DRUMS on May 09, 2016, 06:27:55 am
It all depends on how far ahead of the handle those tips started. Just because they stayed in front of the handle doesn't make it healthy. It just means you added enough to fight off the abuse and have a squeak left over in the end. I don't own a chrony and never will. I cant prove crap. I just make a lot and shoot a lot and rely on my instincts and feel to describe what is going on with each bow and why. I have a trilam that is behind the handle, yet took very little set. I bet it shoots faster than a lot of reflexed bows in its range. Id bet the bow on it.
Title: Re: bbo . . . tiller review
Post by: Pappy on May 09, 2016, 07:10:26 am
I'm with you Brad, smoother yes for sure, faster, not so sure. By the way looks pretty good to me Knoll. ;) :)
 Pappy
Title: Re: bbo . . . tiller review
Post by: BowEd on May 09, 2016, 08:08:18 am
Good looking bow so far Knoll.Like the way those kind shoot too.Are you at your draw length and weight with it in the picture though?
Title: Re: bbo . . . tiller review
Post by: Knoll on May 09, 2016, 09:16:03 am
Good looking bow so far Knoll.Like the way those kind shoot too.Are you at your draw length and weight with it in the picture though?

Ed, it's at my pathetic short full draw, but a few lbs to sand off.
Title: Re: bbo . . . tiller review - FULL DRAW PIC
Post by: Knoll on May 12, 2016, 05:31:30 pm
Here it is at full draw and desired draw weight, though 2 lbs less would be ok too.
Balanced? Don't have good feel for that. Maybe 'cause handle is still sooooo deep & wide.

(http://i884.photobucket.com/albums/ac48/knolltop314/100_3624.jpg)
Title: Re: bbo . . . tiller review
Post by: JonW on May 12, 2016, 07:18:32 pm
Looks pretty good Michael. Does it feel balanced? Are you at desired weight? If you like it I do.
Title: Re: bbo . . . tiller review
Post by: Knoll on May 12, 2016, 07:48:08 pm
Does it feel balanced? Are you at desired weight?

oops, good questions. My post is edited.
Title: Re: bbo . . . tiller review
Post by: BowEd on May 12, 2016, 08:57:15 pm
Wow I can see from the previous pic you took some wood off that boy.Shape the handle to feel good.It looks good.I have a friend that has had his draw length shorten over the years but he still shoots a lot.
Title: Re: bbo . . . tiller review
Post by: PEARL DRUMS on May 13, 2016, 06:13:28 am
Looks very good from up here.
Title: Re: bbo . . . tiller review
Post by: joachimM on May 13, 2016, 11:50:10 am
looking very good. If you're going for speed, you could probably still narrow the tips down a bit, and even trap them a little to lose some extra outer limb weight.
If you don't care, just leave it as it is.
Title: Re: bbo . . . tiller review
Post by: Knoll on May 13, 2016, 11:53:48 am
Yeah, haven't worked on tips and handle yet.
Title: Re: bbo . . . tiller review
Post by: simson on May 13, 2016, 02:57:01 pm
ARe you at full draw?
if not, I would do some scratches midlimb upper
Title: Re: bbo . . . tiller review
Post by: Knoll on May 13, 2016, 06:19:31 pm
Thanks, fellas, for taking time to comment. I did work a bit on top limb. Now gonna call it done.

(http://i884.photobucket.com/albums/ac48/knolltop314/100_3625.jpg)
Title: Re: bbo . . . tiller review
Post by: Dvshunter on May 13, 2016, 07:54:32 pm
Bring n it by mike.mill eye b it for you.