Primitive Archer

Main Discussion Area => Bows => Topic started by: arachnid on December 02, 2014, 08:56:20 am

Title: How Do I fix This?
Post by: arachnid on December 02, 2014, 08:56:20 am

Hi guys.
I had 2 sister billets with a light twist. I spliced them but accidentaly glued them
the wrong way and now I have a stave with a twist (or should I say- turn...) in one limb! The swisted limb is too thick and wide to steam.

Is this fixable? How?

Pics:
(https://lh4.googleusercontent.com/-ZhfnD0UrcxY/VH22rQ4SCkI/AAAAAAAADyY/7mfl0vL7GCo/w649-h865-no/20141202_145330.jpg)

(https://lh6.googleusercontent.com/-tk3g8OBsGeA/VH22O51nRNI/AAAAAAAADyM/rLDqRYKJJDs/w1153-h865-no/20141202_145232.jpg)

Title: Re: How Do I fix This?
Post by: Pat B on December 02, 2014, 09:45:22 am

What glue did you use? If you used Unibond(Urac) you can use a light heating to straighten it. If you used TB glue, heat it until the glue releases, take the splice apart, clean the glue surfaces, correct the problem and re-glue it.

Title: Re: How Do I fix This?
Post by: arachnid on December 02, 2014, 09:53:49 am

I'll give it a try. Thanks Pat.

Title: Re: How Do I fix This?
Post by: Benedikt on December 02, 2014, 10:06:32 am

Yep, enough hit is every glues end.
Next time, watch out for glueing them right  ;D
Greetings,
Benedikt

Title: Re: How Do I fix This?
Post by: PEARL DRUMS on December 02, 2014, 10:14:49 am

How can you glue them together wrong, the splice only goes together one way? Do you have one with the back up and one with the belly up?

Title: Re: How Do I fix This?
Post by: Benedikt on December 02, 2014, 10:17:59 am

@PD:
I guess he has cutted in the splice on the wrong side.

Greetings,
Benedikt

Title: Re: How Do I fix This?
Post by: arachnid on December 02, 2014, 10:23:11 am

I didn't aliened the billets properly. I noticed it only after the glue was dry...  :-\
It's the first time I'm working a stave so.... oops, my bad... ::)

Title: Re: How Do I fix This?
Post by: adb on December 02, 2014, 10:30:44 am

As long as you don't heat the splice joint, you should be able to heat correct the limbs. Alignment and twist are easily corrected.

Title: Re: How Do I fix This?
Post by: PEARL DRUMS on December 02, 2014, 10:43:37 am

Well then Id say your all set. Adam hit it, heat correct the limbs and leave that grip area intact and straight.

Title: Re: How Do I fix This?
Post by: Springbuck on December 02, 2014, 07:34:39 pm

  Agree with Adam, too.  Half the staves I work with look like that!

The splice looks so smooth, I almost can't see it on the back pic, looking down.  Unles the splice iteslf is off, i say go with what you have.

Do this.  Work down the limbs a bit on the sides to expose rings and get a nice flat surface.  Follow the twist, don't try to align limbs to the handle by carving off wood.  Use faceted wood removal techniques to thin the limb down to maybe 5/8" thick or so.  NOW, with enough clamps you can heat treat the whole thing to remove twist, or set yourself up a good one-limb-at-a-time steaming system and get your angle and twist corrections.

That lateral curve is the monster that taught me to ALWAYS restrain staves from saplings and branches.