Lam thicknes

[mzombek]

I have made a few bows in the last couple of years. I had always let the supplier decide what lams I needed for a certain  length and poundage of the bow. Is there a chart stating the different thicknesses of lams needed for specific bow poundage?
Thanks for your help

[Buemaker]

https://binghamprojects.com/learn-from-the-pros/bow-draw-weight/

[mzombek]

Are the chart for bingham’s bow design only

[buddyb]

Yes but its a good starting point.

[monterey]

The bows you have built are the best gude.

[Crooked Stic]

Every design will be different.

[Flem]

Hate to be negative, but I after looking at the Bingham's chart for "Longbow's", I have to say that it's worthless. It gives no info on glass thickness, handle length, or dimensions other than length.
.389" for a 50#@ 68" Longbow? They using metal lams? It's way too vague to be useful. I can't speak to the other designs listed, but I would not touch the Longbow specs  

[buddyb]

Flem, I know what your saying about the Bingham chart, It would be difficult to get accurate measurements for a bow.

The specs listed on the chart are specifically for the blue prints that Bingham sells. Elmont states that if anything changes from his blue prints those charts won't be accurate. 

The best way has been stated to build a bow or two then adjust lam thickness as needed.

[kennym]

Only sure way is to keep records of how YOUR bow comes out . The charts are just guidelines to start .

For example when I made the mod on my D/R longbow by adding an inch of reflex it made 5 lb difference .

[Autumnarcher]

Frankly I was disappointed with pretty much everything I got from Binghams as far as plans and instructional materials. Very vague, video is an old grainy 30 yr old video and very little specifics on the process. The wrotten instruction booklet is just a written out version of the video narration.
 

[buckeyebowhunter]

Frankly I was disappointed with pretty much everything I got from Binghams as far as plans and instructional materials. Very vague, video is an old grainy 30 yr old video and very little specifics on the process. The wrotten instruction booklet is just a written out version of the video narration.
 

Not trying to bash Bingham's but I agree with this. I would not recommend buying the DVD. In regards to the original question most of my bows from Bingham's stacks came in about 5 or more lbs heavier than I had ordered. I'm having fun figuring up my own stacks and taking detailed notes as suggested.