Primitive Archer

Main Discussion Area => Bows => Topic started by: Prarie Bowyer on February 28, 2012, 05:20:34 pm

Title: butt joining bamboo for bow core?
Post by: Prarie Bowyer on February 28, 2012, 05:20:34 pm

Well I lost my source for 72" verticle grain carmelized bamboo flooring. 

I want to try and make a bamboo cored ELB looking thing. Fantasy bow.

What is the best way to join the short boards in the middle?

I consider making my favorite R/D bow as a tri lam with bamboo core and hickory belly also. 

Title: Re: butt joining bamboo for bow core?
Post by: PEARL DRUMS on February 28, 2012, 05:59:23 pm

Im saying scarf.

Title: Re: butt joining bamboo for bow core?
Post by: Onebowonder on February 28, 2012, 06:30:51 pm

DEFINITELY a scarf joint of some variety.  A butt joint would certainly blow apart under the strain.  You might ought to look into a very long or sharp angled finger joint.

Title: Re: butt joining bamboo for bow core?
Post by: Prarie Bowyer on February 28, 2012, 08:34:04 pm

What is a scarf joint?

Title: Re: butt joining bamboo for bow core?
Post by: Bevan R. on February 28, 2012, 08:36:14 pm

like this...

Title: Re: butt joining bamboo for bow core?
Post by: Prarie Bowyer on February 29, 2012, 02:42:07 am

Ahh...

that will take me up to 68" bows but what about an ELB type thing?  Can you have two joints about center..... with flexing going on there?