Author Topic: Experienced eyes? (Read 3174 times)

knuklhed · « **on:** January 12, 2021, 09:16:26 PM »

Gents, what do you think? This here is my latest attempt at a tri lam. My thoughts are that it has a little flat spot mid limb on the right hand side as you are looking at it (top limb), and maybe a wee bit of a hinge at the riser on that side, too. Anything else? Thanks, I appreciate the advice. Roger

knuklhed · « **Reply #1 on:** January 12, 2021, 09:18:38 PM »

Oh, and unbraced and braced pics, too.

Flem · « **Reply #2 on:** January 12, 2021, 11:12:46 PM »

I am surprised how much you got that bending right thru the handle. Looks like all your bend is in the middle 50% of the bow. How does it feel to shoot?

Roy from Pa · « **Reply #3 on:** January 13, 2021, 02:59:03 PM »

Looks like it could be a tad thin right outside of the riser on the right limb.

Roy from Pa · « **Reply #4 on:** January 13, 2021, 03:03:06 PM »

The left limb has a nice arc at the riser, right side seems to bend a little abruptly there.
Also the right limb tip is down further than the left.

onetone · « **Reply #5 on:** January 13, 2021, 03:46:38 PM »

A tiller board member that is divided into a grid of accurately aligned 3” squares really helps with visual comparison of drawn bow limbs.

Mad Max · « **Reply #6 on:** January 13, 2021, 04:27:42 PM »

Quote from: onetone on January 13, 2021, 03:46:38 PM

A tiller board member that is divided into a grid of accurately aligned 3” squares really helps with visual comparison of drawn bow limbs.

x2---mine are 2" squares

knuklhed · « **Reply #7 on:** January 13, 2021, 05:15:40 PM »

Thanks, all, for the feedback so far. Flem, I didn't intend for it to bend through the handle. I mucked up, I think, when I used a chunk of mulberry that a friend gave me for the riser. It looked like a nice warm color so I thought I'd use it for looks. But what I didn't know at the time was that it is quite a weak wood. I'm contemplating cutting it off and redoing the riser. It has not been shot yet, I have been leery of cutting any shelf in. What do you guys think, cut it off and salvage the limbs while I can? (Oh, and I'll spend some time gridding with my dry erase marker soon.)

Roy from Pa · « **Reply #8 on:** January 13, 2021, 05:29:14 PM »

I've removed a riser and put a new one on.

Just be super careful and stop when ya get to the glue line, then slowly clean that up.

knuklhed · « **Reply #9 on:** January 13, 2021, 06:47:31 PM »

So, Mr. Roy, you think that's my best course of action? Work up a more rigid riser, and try again? I've got some hard maple, or some laminated actionwood type blocks.

Roy from Pa · « **Reply #10 on:** January 13, 2021, 07:56:00 PM »

Well it looks like your limb is already hinging a little so a new riser isn't going to fix that.

Flem · « **Reply #11 on:** January 13, 2021, 08:51:52 PM »

Go for an ELB full draw tiller. You are already part way there

knuklhed · « **Reply #12 on:** January 20, 2021, 09:01:02 PM »

try, try again. I cut off the previous riser, and made a new one from hard maple. The gizmo shows a little flat spot on the mid right, or upper limb, and down near the tips on both sides. A little more work to do, I think. What do you guys think, a bit better? I sure am hoping I can make it fling an arrow, so far it's about at my target weight of 47#. (I could live with a little less, too.)

Roy from Pa · « **Reply #13 on:** January 21, 2021, 04:02:19 AM »

Tiller looks very good to me.

I would just touch the flat spot a little, don't worry about those tips coming around, they are good right there.

knuklhed · « **Reply #14 on:** January 21, 2021, 09:44:53 AM »

Thank you for the help. I'll be sure to post another picture or two after I'm done.

Roy from Pa · « **Reply #15 on:** January 21, 2021, 10:14:04 AM »

Flem · « **Reply #16 on:** January 21, 2021, 11:04:40 AM »

I'm really curious to know how your bow feels in the hand when shooting.
Can't help thinking it's got to have some feedback with the current tiller?

Shredd · « **Reply #17 on:** January 21, 2021, 12:23:33 PM »

If you are willing to take some advice from a guy that feels he just barely scraped the tip of the iceberg on bow making...

I think your limbs are bending fairly nice it is the fade area that is questionable...

The fade area is the most stressed part of the limb... It is a transition area where bending meets unbending... It is the base of the limb which has the most torque and stress on it... It has to be strong and virtually unyielding but still has to give a little... Better to be a bit stiff off the fades than a bit weak... A bout an inch from the fades should start your your noticeable bend and unless you have a funky unstrung profile, that limb should have a consistent bend up until about the 3/4 mark at which it should start gradually flattening out, being damn near stiff the last 3 inches... The more consistent that bend is the better performance you should have... That's why the Gizmo is a good tool for some of you guys...

I personally stay away from a straight limb at brace for a number of reasons... I like a little bit of bend in my limbs at brace with a straight or slight reflex at the last 1/4 of limb at brace....

What is the angle coming off your fades when the bow is unstrung..??

Roy from Pa · « **Reply #18 on:** January 21, 2021, 01:03:47 PM »

The problem is, he put on a very long riser after removing the first riser.

My concern is the riser popping off now.

I rasp off the edges of the riser in about 4 inches to make it not so blocky.

If that deflex is inherent from your form, you may be ok.

Flem had a point making it a bend through the handle bow.

Maybe just a 6 inch thinner riser at your grip area may have been better?

knuklhed · « **Reply #19 on:** January 21, 2021, 01:38:23 PM »

The deflex is from the form (see picture), which is why the initial impression might have been of a bend through the handle. I'll be rasping in like Roy mentioned to soften
the edges. And, crossing my fingers the first hundred or so arrows?

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Author Topic: Experienced eyes? (Read 3174 times)

Shredd

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