Author Topic: Dry Run went south. Fast. (Read 2382 times)

Autumnarcher · « **on:** February 05, 2020, 06:42:10 PM »

Doing dry run today, laying everything up on form. Get the back lams in form, set riser on top and - WHAT THE....????

Big chip out of edge/corner right at fadeout. I have no idea how/when this happened. So now what? I could jgnore it, have a big ugly glue joint, and higher liklihood of failure.
I could narrow bow profile down to about 1-1/8” wide, and lose 8-10# off my weight.

I could cut riser down to 16” and shorten bow to 56” and still be under target weight aor scrap the riser.

Lets just say I cussed a few times when I noticed it.

EvilDogBeast · « **Reply #1 on:** February 05, 2020, 06:51:16 PM »

Might be able to cut a little wedge and superglue it in? Worth a shot before cutting or trashing the riser in my opinion.

Forwardhandle · « **Reply #2 on:** February 05, 2020, 06:57:29 PM »

Might be able to narrow your width to get rid of it & if you put in a buffer in your stack weight wise you might be ok I have narrowed a few with out losing a lot of weight !

garyschuler · « **Reply #3 on:** February 05, 2020, 07:15:05 PM »

You might try glueing in a piece to fill gap and run a thin piece of glass over the top to extend 1-2” beyond fade. Of course you would need to feather the ends.
You could glue that to the riser and fade ends then do your bow glue up.

Flem · « **Reply #4 on:** February 05, 2020, 07:50:45 PM »

dutchman

4 point · « **Reply #5 on:** February 05, 2020, 08:04:43 PM »

Can you grind your own lams? If so you could grind the riser back equally on both ends and add a power lam to the back and belly side fades of the riser. If you can zoom in on the one piece recurve I posted on the what did you do thread you'll get a better idea of what I'm talking about.

Mad Max · « **Reply #6 on:** February 05, 2020, 08:24:29 PM »

If you can find the piece that came off, super glue it back on.

Crooked Stic · « **Reply #7 on:** February 05, 2020, 09:05:07 PM »

If it aint high $$ wood scap it. Or glue a piece in there and work it down.

buddyb · « **Reply #8 on:** February 05, 2020, 09:09:15 PM »

I would glue a thin piece to the back of the riser and regrind the fade.

Bvas · « **Reply #9 on:** February 05, 2020, 10:22:01 PM »

At least it happened during dry run and not during glue up. Chipping a fade during glue up sucks. Trust me, I know.

That is the bad thing with walnut. It can be very brittle. I have never trusted walnut fades for this reason. If my riser fades are walnut, I put a power lam in to take some of the stress.

If it were me, I’d drop it down to a 16” riser and put an 18” power lam on the backside.

TradBowyer · « **Reply #10 on:** February 05, 2020, 10:30:09 PM »

How wide are you making your limbs? You'll be surprised how much you lose even at 1.25" wide. I would proceed and take the bow to shape and then see what you have. With a lam covering it I dont think it's an issue. You probably wont even notice it. I'm a lefty so I would just make my window on that side. If it will bother you that much in would make it the lower limb and then style it to grind it out

Autumnarcher · « **Reply #11 on:** February 05, 2020, 11:06:21 PM »

What I decided to do after weighing several options, is shorten riser to 16”, and shorten bow from 58 to 56”. Not a big deal, beats scrapping a riser I put a lot of time into. Lessons learned. Thats what matters most to me. Appreciate everyone's suggestions and input. Glueing up tomorrow, could never got here without y’alls help along the way. Bow will likely cone in a bit lighter than target, thats fine by me. Certainly there will be more after this one.

BigJim · « **Reply #12 on:** February 06, 2020, 07:14:57 AM »

There would be very little of that spot left by the time the bow was finished.. if you saw a little glue there, it could be touched up with markers. It would not increase your chance of bow failure.

BigJim

Mad Max · « **Reply #13 on:** February 06, 2020, 07:38:15 AM »

There you go, From a Master bow maker.
56 is short, what's you draw length?
I have broke them off too and glued them back on.

I'v had pieces that were only 16" long and make a power lam 18" long to go on top of the riser.

Crooked Stic · « **Reply #14 on:** February 06, 2020, 09:17:10 AM »

Markers are your friend sometimes

Bowjunkie · « **Reply #15 on:** February 06, 2020, 09:21:08 AM »

I was in the middle of a glue up once, had the lams glued and stacked, the riser all covered in glue and was setting it on the stack, I knocked everything off the form and onto the floor. The epoxy on the lams picked up all kinds of dirt and wood chips which I had to scrape off, and chipped TWO opposite fade corners of the riser. I pitched it and made another one right away. Had to do it before the glue started to cure on the lams. I had epoxy all through the hair on my forearms the whole time. Lol. That was the fastest riser prep I've ever done. It worked. I hate those panic moments.

monterey · « **Reply #16 on:** February 06, 2020, 11:31:52 AM »

I would go ahead and glue it up then narrow it from the chipped side until it's no longer visible. It's going to effect draw weight for sure but that's nothing compared to a lost project.

Tim Finley · « **Reply #17 on:** February 07, 2020, 10:26:06 AM »

I would toss it and start over cause walnut is not strong enough for a handle anyway.

Flem · « **Reply #18 on:** February 07, 2020, 10:56:43 AM »

Quote from: Tim Finley on February 07, 2020, 10:26:06 AM

I would toss it and start over cause walnut is not strong enough for a handle anyway.

Careful there!
I use Walnut all the time. This one is all Walnut, limbs and handle. It bends well into the fades.

Tim Finley · « **Reply #19 on:** February 07, 2020, 07:23:57 PM »

I learned my lesson the hard way when I first started, walnut was readily available and cheap and I broke a couple of handles then talking to other bowyers they had the same experiance . It may be ok for in the limbs but not in the handle unless you are making a light bow .

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Author Topic: Dry Run went south. Fast. (Read 2382 times)

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