First attempt at HBO

[Minnesota Bill]

I am thinking of putting together a HBO bow this next week.  Are there any good build along's out there?  I have a osage board and a hickory backing strip.  I have read some posts that include a power lam?  What is the purpose?  Do I need it?
Thanks
Bill

[Pat B]

If your osage board is full thickness(3/4") you don't need a power lam. It is usually inserted between the backing and belly to keep the handle rigid.  Before you glue up pre tiller the osage a bit so each limb bends evenly and both limbs bend similar. When you add reflex at glue up this will give you a nice even bend to your reflex.

[Minnesota Bill]

Thanks Pat, my board is full thickness.  That makes sense with the power lam needed with thinner lamination or a thinner board.

Thanks again, Bill.