Trilam question

[Fishinglink]

Has anyone built a reverse handled trilam? Gonna use bamboo for the back. Can I run it up the ramps like fiberglass using two pieces instead of one long piece or would I be better off using a radius on the riser back and running one long piece of bamboo?  I would run the core and belly along the belly side of the riser with a thin overlay to reinforce my splice. Would be an ASL type bow.


Sent from my iPhone using Tapatalk

[Roy from Pa]

You could probably do two pieces, then add a bamboo overlay over them on the riser back.

Or ya could run one whole piece of boo to be safer.

Yer gettin pretty fancy for a rookie:)

But hell ya didn't listen to me the last time and got an 80# bow, so just delete this message:)

 

[Fishinglink]

Haha. I’m just gonna aim for 80# this time and hope to come in underweight. But at least now I have a stack measurement for an 80#r


Sent from my iPhone using Tapatalk

[OkKeith]

Roy will probably know this... but is bamboo OK for compression on the belly of a bow?

I saw in the Bow Swap thread someone had built a bow with bamboo on the back and the belly and it looked great. I didn't notice if they off set the nodes. Would you need to do that to prevent hinges in the limbs? If not, and you lined them up it would almost look like the bow was made from a single culm... that would be neat.

OkKeith

[Roy from Pa]

Woodcarver makes a lot of them so it has to be ok in compression.

I'm going to try one this fall.

We can ask him about the node layout.

[wood carver 2]

Sorry guys. I meant to chime in on this before, but I got distracted by a nice big pork chop. 🙂
I’m not sure if it matters, but I like to stagger the nodes on the back and belly. I feel that it prevents hard spots in the limbs.
Also, I like to heat treat the belly lams and by heat treat I mean torch them black!
I cut the belly lam in half and run it up the fade out ramps. You’ll never have a riser pop off that way and it looks good.
If you have questions, ask. I learned to build bows here and I’m all for paying it forward.
Dave.

[Forwardhandle]

I think Ben Bmorv did one a while back you might try to PM him !