Form Design?

[scottm]

Am I understanding this right? When you design a laminated bow form you need to allow for some "spring back" of the limbs when the bow is removed from the form? If so how much? Does it depend on the design of the bow? Thanks Scott

[kennym]

On my d/r form, about 1/8 to 1/4 right off. You are bending wood ,it tries to bend back , the glass and glue lines try to keep it from doing so.

Then if you leave it strung all the time like I do, prob 3/8" after while.

So, if you make it 3/8"  more to the target side with tips, you should be close.

Yer mileage may vary!  :D

[scottm]

Thanks so much Kenny!

[pipedream]

So on a straight long bow will you end up with a little string follow?

[Canadabowyer]

My experience is the same as Kennys. Yes, on a dead straight form you will end up with a very slight string follow, makes a very sweet shooting straight longbow. Bob

[pipedream]

Sweet, that is what I was hoping to hear.

[monterey]

Both of my straight flat bows (66" and 68") have developed about 1/4 to 3/8 inch string follow.  Like Canadabowyer says, they are sweet shooters.  I'll add that with heavy arrows they are very quiet.  Neither of mine have or need string silencers.  Not speed demons, just slilent killers!  

[typical2]

Here is a longbow made on a straight form.  A little bit of string follow.

 

[Jorgy]

Yep Kenny's got it,that's what I ment when we talked Scott.If I built the same form for the bow I sent you I would set the limbs toward the target about one inch.

[Jorgy]

Or I would make the limb radius slightly tighter,38" as opposed to 40".

[scottm]

Thank again for the replies fellas. Jorgy,Between the conversation we had,and some things Kenny had posted ,it got me thinking,"is there a general amount of limb set that llaminated bows normaly take after coming out of the form".You guy's answered that for me.Thanks so much.Scott