Lam grinder jig

[Broke another one]

Hello,
I tried to replicate Pennsyltuckey pete's grinder jig   here  and disaster struck. So I scrapped it and just turned the whole bench into the jig Thought I would show a few pictures (please excuss the mess)
 
 
 

Here are two ash lams I intend to use in a bow, similar to the one dutchwarbow made   here   (I doubt it will turn out nearly as perfect as his but hey I can try)
 
 
I plan on using the ash and some purpleheart, backing it with boo of course. I plan to make the bow 60" tip to tip with 50# @ 28". Can anyone tell me what thickness I need to be looking for on my laminations? I was going to go for .25" for the ash and maybe .33" for the purpleheart.

[eman614]

i am assuming this will be a D shaped longbow, in which case your lam thickness will probably be pretty close. i don't know much about building bamboo backed bows, but if it were to be a glass backed bow, that thickness would be too thick. but you are gonna use boo so it might be fine. plus you can always scrape some off the belly to lighten the draw weight. if i were you i would pm nick "dutchwarbow" and see if he can lead you in the right direction.  just my 2 cents.

eric

[Broke another one]

Thanks eric, I think I will ask him.
I saw your clear glass bow, its gorgeous.