Primitive Archer

Main Discussion Area => Bows => Topic started by: 0ri9ine11 on May 30, 2018, 11:59:25 am

Title: where's the poundage
Post by: 0ri9ine11 on May 30, 2018, 11:59:25 am

So I am currently building a horsebow out of Rattan Manau. I don't know how popular that idea is around here, but over at fletchers corner it got quiet famous because its such a nice "light version" of an actual hornbow.
I'm planning to face it with american walnut, but tiller it as good as possible beforehand. I scraped the Manau down to about 13-15mm and strung that whole thing to braceheight. I gave it a careful littl pull and had to notice it was extremely easy to pull. Even though I am going to face it I'd still like it to be a little strong in of its own.
So I took the heat gun and roasted the belly. (at this time around 2-3 times on both limbs) After every heat treatment I noticed the limbs got quiet a lot harder to bend and it was noticable harder to string as well.
But as soon as it was at braceheight... boom poundage gone! Feels like 5 pounds. Now I have never pulled a recurved bow or one with siyahs before. Anybody got an idea? ???

Title: Re: where's the poundage
Post by: Pat B on May 30, 2018, 12:27:08 pm

Because this is not a horn bow I'm going to move this to "Bows" for better visibility.

Title: Re: where's the poundage
Post by: 0ri9ine11 on May 30, 2018, 12:35:00 pm

aight. sorry I wasn't sure :-[

Title: Re: where's the poundage
Post by: Ryan Jacob on June 03, 2018, 07:31:46 am

Are you sure nothing broke? Like a fret?

Title: Re: where's the poundage
Post by: 0ri9ine11 on June 03, 2018, 09:36:09 am

jup everythings normal

Title: Re: where's the poundage
Post by: Ryan Jacob on June 03, 2018, 10:28:33 am

Wait, so you got the string on and it lost pundage?

Title: Re: where's the poundage
Post by: DC on June 03, 2018, 10:38:05 am

When you say "face" it with Walnut do you mean "back" it with walnut? If so a backing will increase the draw weight quite a bit, more than you expect. I've never used Walnut for a backing so I have no idea how well it will work.

Title: Re: where's the poundage
Post by: 0ri9ine11 on June 03, 2018, 12:59:59 pm

no I mean walnut on the belly. Manau is not something that can make use of a backing, since its only problem is compression and a lot of set

Title: Re: where's the poundage
Post by: DC on June 03, 2018, 02:14:39 pm

A belly lam will probably still increase the draw weight but I'm venturing into guesswork now ;D ;D

Title: Re: where's the poundage
Post by: 0ri9ine11 on June 04, 2018, 09:56:41 am

@Ryan jacobs
I mean at least it feels like it. or more specifically: the pundage when strung didn't increase while it got harder and harder to string and bend by hand :o

Title: Re: where's the poundage
Post by: Ryan Jacob on June 07, 2018, 09:32:57 am

Well, it really doesn’t matter if you’re adding a belly lam, that’ll add a couple pounds.