alternative materials & new methods... etc

[williwaw]

Loren Piper posted with some unusual ideas back in  2009. he was 83 at the time according to his profile. 
https://www.tradgang.com/tgsmf/index.php?action=profile;u=18128

[Mad Max]

Interesting
I read his post.
What is S-glass?

[williwaw]

13% stiffer.  specs in last column of table posted in flems thread. not sure if kenny can get it anymore.

[kennym]

Don't have a place to get S glass ...

[williwaw]

can anyone say what stabil-kore is made from? I read it is a graphite 'replacement", so maybe not any carbon in it?   I read what it does, and what it is supposed to do, and the comments that it does not add any poundage when incorporated into the stack.

if you try to light a piece on fire, does it burn? what does it leave behind besides smoke?

[Roy from Pa]

You want a lighter core wood try eastern red cedar.

[Bowjunkie]

Sassafras.

[Roy from Pa]

Yes, Sassafras is another good light snappy pretty grain wood.

I've used that also.

[kennym]

This is all I could find with a quick search, if you can get anything from it...

http://bearpaw-blog.de/bilder/bearpaw-stabilcore.pdf

[Flem]

How about some Kevlar honeycomb? It's lite and strong when sandwiched.

[Bvas]

How ya gonna keep glue out of the voids? 

[kennym]

How ya gonna keep glue out of the voids? 

Packing tape...

[Mo_coon-catcher]

Would a stiff, snappy wood be a good alternative to going lighter in the core? Such as tempted edge grained black locust. Once tempered that stuff gets incredibly snappy for its thicknesses. Essentially to get the core assisting a bit with the return of t he limbs as opposed to being a neutral spacer for the outer layers. The stiffness may make up for the extra mass of being a more dense material. Now I know very little about making glass bows, but it’s just a thought I’ve have running through my head.

Kyle

[Flem]

How ya gonna keep glue out of the voids? 

Torsion box construction, but to quote something I read recently;

"I have time to think about, not to do it."

[Bvas]

How ya gonna keep glue out of the voids? 

Torsion box construction, but to quote something I read recently;

"I have time to think about, not to do it."

[Roy from Pa]

Torsion box construction, but to quote something I read recently;

"I have time to think about, not to do it."

Ah come on Flem...

You can doit...

[williwaw]

This is all I could find with a quick search, if you can get anything from it...

http://bearpaw-blog.de/bilder/bearpaw-stabilcore.pdf

thanks Kenny,
that helps with some specs.  not all that informative about what it is really. I read somewhere bearpaw sources some of its materiels from composite suppliers that serve the ski industry. maybe it is repurposed from a different product line.

[williwaw]

Would a stiff, snappy wood be a good alternative to going lighter in the core? Such as tempted edge grained black locust. Once tempered that stuff gets incredibly snappy for its thicknesses. Essentially to get the core assisting a bit with the return of t he limbs as opposed to being a neutral spacer for the outer layers. The stiffness may make up for the extra mass of being a more dense material. Now I know very little about making glass bows, but it’s just a thought I’ve have running through my head.

Kyle

kyle, I wish i could try lots of different stuff. we have very few hardwoods here. birch maybe the best. i guess if I have to depend on the ups truck, I am focusing on things that might remain the same from batch to batch. Not to say your idea would not work.  I think I know littler than you about making glass bows, but learnin....

[williwaw]

You want a lighter core wood try eastern red cedar.

certainly some lighter woods out there, but haven't the guys tried them all? most come back to maple when its all said and done.

 Im looking for a game changer 

[Longcruise]

Eastern red cedar has a strong following in ASLs built by a fellow named Johnson I believe.