Thanks Roy I see what you are trying to tell me and will round the sides more to make it almost look like a oval/egg     . Thanks for the pm!!

On the belly lam is 3/4" too thick??? or Must i thin it to get a bit of bend in the glue up!!??

3/4" is fine if you want a 100 pound bow.. LOL

Oval/egg shape is perfect..

I would make the belly lam and core lam both 1/4" thick. Leave the belly lam parallel, taper the core lam from 1/4" thick at the riser ends to about 1/8th thick at the tips.

I think Roy's suggested dimensions are right on. Looking forward to seeing this turn out

Hi guys I got the wood planed at a friend it ended up 7/32" not 1/4" as planned but it will have to do! I also decided to plane the massaranduba while having the opportunity. Note to self a very important note use a respirator for this wood. I wanted to die, this stuff gave me and my buddy a violent asma type attact, it burns you're throat and nasal cavity like pepper spray/mace     ! So soon a bow on the way!!!  

Big 10-4 on the respirator.... And gloves and eye protection..

Thanks Roy will take that under serious consideration but the bow is on the way! Hopefully after fixing the brakes on my car tomorrow I will be starting slowly to taper the core lam!
Thanks for all the encouragement will keep you appraised of my slow progress    I am officially slower than you!
Martin

Hallo Martin,

Goed om nog Suid Afrikaners hier te sien! Jy kan ook vir Derek Nourse in Natal probeer kontak as jy raad soek. Hy het self al heelwat bamboo backed boe gemaak.  http://norsemenarchery.co.za/historical-bows/bamboo-backed-osage-longbow/

Groete
 Johan

Dag sê Johan dankie vir die raad!

A quick update my free hand attempt on grinding the tapers on the core lamination ain't gonna work so need to mod my grinder, I spend my morning surfing the interweb and after some head scratching came upon the "jig" that will make my headache of free hand grinding dissolve into a massive grin! I will put the results into this post.

Martin