I followed through with your suggestion to read the bowyers Bible. I bought the first three volumes and I must say that they are well written and informative. I have a ways to go in my learning but now that I have this information to fall back on I should enjoy some success. I have a lot of black locust on my land and I fully intend on crafting a bow from those trees. I am blessed with a nice variety of trees like hickory, maple, walnut and such and perhaps someday I can glue up a bow with wood from the property. All of this is very exciting to me because my journey in archery began in 1974 with a bear grizzly recurve and only now am I going down this path of self bows and all wood construction. Thanks again for your guidance.
Glad you got the books, and they are helping you out. I would highly encourage picking up #4 because it addresses some additional learnings that are very valuable.
@@meadowlarkadventuregear sure thing! I am rapidly soaking this information up, so I will have to order #4 soon. This is really exciting and I feel like "where have these books been all my life?". I posses a great deal of woodworking tools and the wheels are turning as I read.
greetings mr.pettit and everyone.thats a great idea.i never took spine testing seriously,but i need to be a bit smarter to get a good balanced arrow.i will build one like yours sir.thanks again🙂GOD BLESS YOU ALL
Thanks for this video, I'm new to archery, trying to make my own bow and arrows. I understands that the spine was important, and I wanted to know how to measure it
Nice and simple. I built one using a similar manual micrometer you have on your early model but have coincidently just ordered a digital dial indicator with a view to upgrading. Found the manual micrometer to fiddly.
Easy design to replicate. And effective/efficient. I like it! Have one suggestion to consider. Hanging the 2 # weight from one hook means weight is offset small amount from plunger. If weight were hung from two hooks ... one on each side of plunger ... you'd eliminate inaccuracy caused by weight be offset from plunger. Of course, the 2 hangars hooks would need to be spaced closely together and consistently spaced from measurement to measurement. AND I do not know how much deflection measurement would change. Maybe not at all or of no real life significance.
Thinking that if you mounted the travel scale a little higher.... it would not have as much tension in it's own spring and would not add a little down deflection of it's own to the deflection the weight provides? It seems like it pushes down a little from the start before you even add the weight.
It does. I have to zero it prior to the deflection which is a one-time deal since any minor variance between shafts isn’t enough to change the reading by even 1lb. of spine weight. As for the hight of the scale, it bottoms out pretty quickly when testing light weight arrows…
I followed through with your suggestion to read the bowyers Bible. I bought the first three volumes and I must say that they are well written and informative. I have a ways to go in my learning but now that I have this information to fall back on I should enjoy some success. I have a lot of black locust on my land and I fully intend on crafting a bow from those trees. I am blessed with a nice variety of trees like hickory, maple, walnut and such and perhaps someday I can glue up a bow with wood from the property. All of this is very exciting to me because my journey in archery began in 1974 with a bear grizzly recurve and only now am I going down this path of self bows and all wood construction. Thanks again for your guidance.
Glad you got the books, and they are helping you out. I would highly encourage picking up #4 because it addresses some additional learnings that are very valuable.
@@meadowlarkadventuregear sure thing! I am rapidly soaking this information up, so I will have to order #4 soon. This is really exciting and I feel like "where have these books been all my life?". I posses a great deal of woodworking tools and the wheels are turning as I read.
greetings mr.pettit and everyone.thats a great idea.i never took spine testing seriously,but i need to be a bit smarter to get a good balanced arrow.i will build one like yours sir.thanks again🙂GOD BLESS YOU ALL
Thanks for this video, I'm new to archery, trying to make my own bow and arrows. I understands that the spine was important, and I wanted to know how to measure it
Great concept - does look nicer to use than your older one (which was also actually very clever)
Both designs work well, but to bring your other comment into the mix, I’d say the old method was more precise - but not by a significant amount.
Nice and simple. I built one using a similar manual micrometer you have on your early model but have coincidently just ordered a digital dial indicator with a view to upgrading. Found the manual micrometer to fiddly.
Yep! Digital readouts are just too easy to zero and get a quick reading… you’ll be glad you updated.
Easy design to replicate. And effective/efficient. I like it! Have one suggestion to consider. Hanging the 2 # weight from one hook means weight is offset small amount from plunger. If weight were hung from two hooks ... one on each side of plunger ... you'd eliminate inaccuracy caused by weight be offset from plunger. Of course, the 2 hangars hooks would need to be spaced closely together and consistently spaced from measurement to measurement. AND I do not know how much deflection measurement would change. Maybe not at all or of no real life significance.
Agreed on all accounts…
I built two similar to that one for carbon and one for wood arrows. nice job
Thinking that if you mounted the travel scale a little higher.... it would not have as much tension in it's own spring and would not add a little down deflection of it's own to the deflection the weight provides? It seems like it pushes down a little from the start before you even add the weight.
It does. I have to zero it prior to the deflection which is a one-time deal since any minor variance between shafts isn’t enough to change the reading by even 1lb. of spine weight. As for the hight of the scale, it bottoms out pretty quickly when testing light weight arrows…
Very useful, thanks for sharing!
Is indicator's max range approx 1"?
I think it’s exactly 1”
What is the gauge called?
I keep googling and just cannot find it
It’s a machinist’s travel gauge
@@meadowlarkadventuregear thank you
I'll just buy one that's easier.
Lol!!! True…