How to reduce spring back from the mold?

[Zradix]

Hey everyone.

If you wanted to build a lam glass bow with a lot of r/d, how do you keep spring back to a minimum?

Does it help to use more core lams that are thinner rather than fewer thicker ones perhaps?

Thank you!

[T Folts]

Yes I believe that is what I have read in the past. I use three cores with glass and dont get hardly any. Some bowyers will use a minumum of six total in a stack including glass.

[Bradford]

Yep... when you use more lams the 5 lams will slide slightly against each other and create a stronger bond holding the shape.

With only a few lams you don't get as much sliding and the thicker wood wants to go back to it's original form.

[GREG IN MALAD]

Thinner lams help and so does letting it cool down before opening the form.

[Zradix]

Thanks friends!