Perry reflex is one of the most mysterious things in bowmaking!😂 Excellent video!

@meadowlarkadventuregear

6 ай бұрын

Thanks for watching!

The bow would have picked up much of that weight if it had been glued up flat. Adding thickness increases the stiffness exponentially. To me, the advantage of the Perry reflex is that the tension side of the back and the compression side of the belly are under no fiber stress when bent back to straight, which means the bow is already storing energy before the tension and compression faces even experience any fiber loading. The energy storage and the fiber stress are inside the bow on either side of the neutral axis by the glue line. In a normal--non Perry reflex bend, there is very little fiber loading near the neutral axis. This means that the Perry reflex bow spreads more of the stress evenly through the thickness of the bow rather than concentrating almost all of it in the fibers in the surface of the belly and back. I think it is a brilliant concept, and inherently more efficient than a naturaly reflexed stave, or a steamed stave.

@meadowlarkadventuregear

6 ай бұрын

Preach..! That’s been the message of this channel since its inception…

Idk what state you’re in but I cut a big straight mulberry tree down a few years ago and split into staves, I’ve made a couple self bows from it and it’s amazing how much flex it has. I made a 56” bow that I pull to a 27” draw! You’re more than welcome to some for free but I live in East Tennessee.

I think Harold Groves Dyna Stressed limbs were built along this same principle. I've owned several of his Spitfires from the late 1960's and early 1970's and they were all really quick shooting bows for the draw weight/arrow weight. My understanding is that his fiberglass backing was made and stored in a large arc. Then when the limbs were glued up, the fiberglass layer was glued under stress, with the arc of the fiberglass facing the opposite direction of direction the bow was to be drawn. All of my Groves bows have zero stacking, and seem much quicker than other similar recurves from the same era.

@meadowlarkadventuregear

Ай бұрын

Probably so… the construction technique stands on its own - materials could be changed, within reason, but the results should be similar.

greetings sir and every1.im a bit late,but i put the subscribed message one side until i have finished some ideas and just finished a hickory commanchi bow 42 inches @ a little over 40 pounds.shoots very fast to. Gentlemen! the bows i build came from all the lessons from MEADOWLARK. a BIG THANK YOU TO THE MEADOWLARK BOW BUILD TEACHER .this is a very interesting lesson sir,because one would think what difference the ea40 does when the 2 pieces are laminated together.especially when one has to build a light draw weight bow

@meadowlarkadventuregear

6 ай бұрын

Thank you for the shout out, and for all of the interactions over the years! Your bows are outstanding!

@bienyamientoefy1923

5 ай бұрын

🙂thank you teacher@@meadowlarkadventuregear

Awesome video! Cool to see the taper jig in action!

@meadowlarkadventuregear

6 ай бұрын

Thanks for watching!!! That jig is truly a game changer for me! - I hope it helps other bowyers!

excellent video

@meadowlarkadventuregear

6 ай бұрын

Thank you fire watching!!!

Remarkable stats!

@meadowlarkadventuregear

6 ай бұрын

And that’s with a very mild reflex!!!

Thanks for your time and for sharing these videos. Inspired me to have a go at bow making. I'm about to start a build on your reflex/ deflex design, the tillering of the rfx/dlx frightens me a littel 😅. Is there much difference In performance between these 2 designs. The tillering of this design is much more In my comfort zone.and if all goes right have a bow to shoot not fire wood.

@meadowlarkadventuregear

Ай бұрын

First off, thank you for watching and your feedback! Second, I think performance comes down to the bowyer and his understanding of how to make fast bows. There are some basic best practices like very low mass tips, and then some more nuanced practices like gluing techniques etc. But not all concerns revolve around speed especially at the cost of accuracy, handling, or the difficulty of construction. This style of bow will put meat on the table, and even look good doing it. The important thing to do is get started - Enjoy the build!!!

Another fantastic video my friend!! That glue does some amazing work, Im looking forward to you next clip. My problem is that I keep being too safe with thickness and they come out of glue up at like 100 lbs... so if you had to guess, what do you think that bow with those dimensions could have drawn, 50lbs? Nice work!

@meadowlarkadventuregear

6 ай бұрын

After the tillering, breaking in, and finish work - this bow is easily north of 70# @ 28”. There’s a lot of work to be done to get it to target weight!

Firehouse brewing company. That is right here downtown of my hometown.

@meadowlarkadventuregear

6 ай бұрын

The wife and I took a road trip to South Dakota a few years ago. We loved every minute of it!

@rickyscull2380

6 ай бұрын

@@meadowlarkadventuregear it's a nice place to live for sure

Your tapper jig is genius sir! Great underlying message here. How do other backing materials fair in comparison to bamboo when used to elicit the same amount of reflex on something like a stave bow? I'm thinking rawhide and sinew mainly, glued onto the back of a self bow which has been forced into a similar amount of reflex on a jig like yours. Great content by the way!

@meadowlarkadventuregear

6 ай бұрын

Thank you for watching!!! Everything in this video would hold true for wood backings. I’ve seen the method used successfully with sinew backing to enhance its effectiveness but in that instance (like with rawhide) it’s the backing that’s doing all the heavy lifting - in the form of stretching. With a wood to wood construction, we’re preloading the tension with the glue line taking the workload in the form of shear. The best way to illustrate it would be that when the reflexed parts are bent back to straight, they are no longer under any tension or compression, but it took pressure to get them there. That energy is being stored internally (at the glue line) which then brings up the topic of back to belly ratios - a whole other ball of wax.

@markruff8080

6 ай бұрын

Thanks, that a great explanation which makes a lot of sense. This is a fascinating subject. Looking forward to your future episodes. Thanks for sharing so much fantastic info! We amateurs really appreciate the head start you're giving us!! 👍

Beacause the lamination process added that much draw resistance... does that mean that most of the stress is in the epoxy bond itself? I mean yes the belly's resistance to compression and the Back's elasticity is obviously creating the bow's strength, but wondering how much stress is on the actual glue line since that is what seems to have setup the power of the bow.

@meadowlarkadventuregear

6 ай бұрын

Thanks for watching and you’re exactly right. The amount of energy storage could be quantified by how much pressure it takes to bring the limbs back to straight after they have been laminated. There is, of course a limit to how much glued-in reflex will work in a bow.

I see, said the blind man.

@meadowlarkadventuregear

5 ай бұрын

Hope this information found you in time for the build you’re starting!