Primitive Archer

Main Discussion Area => Bows => Topic started by: JW_Halverson on October 17, 2023, 10:17:14 pm

Title: Help with reducing mass on tips
Post by: JW_Halverson on October 17, 2023, 10:17:14 pm
I feel that I am missing out on performance with the excess mass on my bow tips. I am going to post a pic, can I get some constructive criticism???   >:D
Title: Re: Help with reducing mass on tips
Post by: superdav95 on October 18, 2023, 12:14:58 am
Man. They seem nice a narrow to me.  Only thing to possibly do is maybe make the transition from the horn to wood shorter to save some mass.  A little ramp I guess.  They look real nice the way they are though. 
Title: Re: Help with reducing mass on tips
Post by: TimBo on October 18, 2023, 01:20:12 am
I think the yellow paint and lead are probably weighing down the tips on the RH side. 
Title: Re: Help with reducing mass on tips
Post by: Pat B on October 18, 2023, 01:30:23 am
I agree with Dave, John.   :OK
Title: Re: Help with reducing mass on tips
Post by: bassman211 on October 18, 2023, 10:05:48 am
If you use the step through, or push pull method of stringing your bow you could cut the length of the tips in half.  Won't look as good, and increase in speed would be marginal at best. Your tips are pushing the limits as is. Nicely done.
Title: Re: Help with reducing mass on tips
Post by: Selfbowman on October 18, 2023, 10:20:42 am
Side view with the pencil and draw weight? That pic tells me if it’s 45-50 pound bow it’s not the tips it’s probably design. Need pic of side profile of the entire bow.
Title: Re: Help with reducing mass on tips
Post by: bobnewboy on October 18, 2023, 11:36:43 am
As has been said, less horn means lighter tips. Also you can make the cross section of the limb tip into a triangle, with the bow’s back being one of the triangular sides, and a ridge running down the belly.  That way, you still have the original thickness of the limb tip back-to-belly, but lose a little wood from the sides where it shouldn’t make much difference to bending resistance. Eventually you will run up against lateral stability though.

Cheers, Bob
Title: Re: Help with reducing mass on tips
Post by: Selfbowman on October 18, 2023, 11:43:50 am
As has been said, less horn means lighter tips. Also you can make the cross section of the limb tip into a triangle, with the bow’s back being one of the triangular sides, and a ridge running down the belly.  That way, you still have the original thickness of the limb tip back-to-belly, but lose a little wood from the sides where it shouldn’t make much difference to bending resistance. Eventually you will run up against lateral stability though.

Cheers, Bob

I agree Bob . I’m backwards as usual. I trap the back and transition to thicker more narrow limb tip the last two inches.
Title: Re: Help with reducing mass on tips
Post by: RyanY on October 18, 2023, 04:27:29 pm
Don’t use such a big pencil for comparison next time! ;D
Title: Re: Help with reducing mass on tips
Post by: Del the cat on October 18, 2023, 05:59:44 pm
only needs a groove on the back. Any material wider than the groove isn't doing anything and can be removed. Anything wider or deeper than the groove that is out beyond the string can be removed.
As I've said before... reduce it until it breaks, then go back a tad  >:D
Del
Title: Re: Help with reducing mass on tips
Post by: Pappy on October 19, 2023, 09:35:50 am
Looks really good to me JW, But I ant into dainty tip anyway.  ;) :)
 Pappy
Title: Re: Help with reducing mass on tips
Post by: Selfbowman on October 19, 2023, 09:50:16 am
only needs a groove on the back. Any material wider than the groove isn't doing anything and can be removed. Anything wider or deeper than the groove that is out beyond the string can be removed.
As I've said before... reduce it until it breaks, then go back a tad  >:D
Del

Agreed. Yes also I  think that trapping the back keeps a bow more stable when diminishing mass for performance. That is if the tension is equal to or stronger than the compression
Title: Re: Help with reducing mass on tips
Post by: Eric Krewson on October 19, 2023, 10:06:12 am
A lot of people who make big clunky bow tips may not be aware that wood is 7 times stronger in depth than width. You can get away with a very narrow tip with just a little more thickness.

I love your tips John, very sleek and stylish. I suspect this thread is a little tongue and cheek, I get it.

This bow tip is very narrow but is actually 1/2" thick and very strong. I make all my bow tips this way. For those that don't know, the extra groove is for a simple parachute cord bow stringer, very easy to use and won't slip off the limb tip.



Title: Re: Help with reducing mass on tips
Post by: superdav95 on October 19, 2023, 10:18:36 am
I like it!
Title: Re: Help with reducing mass on tips
Post by: Selfbowman on October 19, 2023, 12:56:01 pm
 Yes those are nice tips Eric. I like them . JW you don’t have much mass that you can remove if you get down to it!
Title: Re: Help with reducing mass on tips
Post by: SDBurntStick on October 19, 2023, 09:37:33 pm
Del said it best in one of his videos "Slim them till it breaks and then back off a bit"  I agree, well done.  One day I'll get the nerve to make my tips that narrow and squeeze out that extra little bit.
Title: Re: Help with reducing mass on tips
Post by: sleek on October 21, 2023, 10:58:17 am
Dang JW, I make my tips clunky as clogs compared to that! And my bows seem pretty quick. If you aren't getting the speed you are after, it may be design, tiller, or wood choice. Either way, thats a sexy tip.
Title: Re: Help with reducing mass on tips
Post by: JW_Halverson on October 21, 2023, 09:09:53 pm
Dang JW, I make my tips clunky as clogs compared to that! And my bows seem pretty quick. If you aren't getting the speed you are after, it may be design, tiller, or wood choice. Either way, thats a sexy tip.

It was a board bow pulling close to 50# at 28" and I was pushing absolutely everything to the limits just for the fun of seeing what would let go first. I can say the tips are holding up nicely. And if I need to, I can stab anyone that makes fun of them!
Title: Re: Help with reducing mass on tips
Post by: Selfbowman on October 22, 2023, 04:45:06 am
Dang JW, I make my tips clunky as clogs compared to that! And my bows seem pretty quick. If you aren't getting the speed you are after, it may be design, tiller, or wood choice. Either way, thats a sexy tip.

It was a board bow pulling close to 50# at 28" and I was pushing absolutely everything to the limits just for the fun of seeing what would let go first. I can say the tips are holding up nicely. And if I need to, I can stab anyone that makes fun of them!

🤠🤠🤠🤠