Anybody try this stuff for risers?

[kennym]

Decent cost but wonder if it be brittle . I did the fatarse test with blocks on floor spaced 36”   and broke a 1”x1.75 “

Also broke a piece of black locust same way same size...

[kennym]

If my math is correct it weighs same as hard maple

It’s got a nice color and reasonable price

[kennym]

Any thoughts or theories? Moisture is only about 4.5 percent …

[4 point]

Are they treating that with anything or is it just the drying process?

[4 point]

It reads like it’s just bare wood

[kennym]

I think just heat treated . They do poplar too .

I just wondered if it was too brittle for a riser but I guess amberboo is heated too

[kennym]

Anybody heat treated an ash selfbow to add lbs?

[Mad Max]

Anybody heat treated an ash selfbow to add lbs?

Yes Ash selfbow needs heat treating
Slow and deep

[simk]

Kenny,
there is lots of different heat treated lumber out there. Everybody is cooking its own recipe for the process. the goal of the process in most cases is making the wood more durable and resistant against decay and mold. Very low moisture is one effect. Mechanical properties are not improved for our needs; on the contrary it gets brittle in most cases and compression ability decreases. Made a few experimemts myself.
If this is your goal, you can improve mechanical properties some if you adapt the process and use less heat than they do. Its delicate however.
jm2c   

[kennym]

Thanks Simon,

I have done some testing and it is waaaay too brittle to use in a bow IMO .  Lams snap easily compared to maple.

I was mainly looking at a more cost effective option for risers.  I don't think I'd trust it.

I do like the color but the smell when milling it is not nice either...

[Kirkll]

I think just heat treated . They do poplar too .

I just wondered if it was too brittle for a riser but I guess amberboo is heated too

Heat treated bamboo vs natural bamboo definitely increases the deflection and compression strength, and is preferable in bow laminations. But the flexible nature of the bamboo itself is till there.

But heat treating Ash and poplar is definitely going to make it brittle. It may work just fine for a riser if it can hold up to the shock.  They didn’t have any technical specs on elasticity, or hardness, or mass weight density that I found. 

I’d say give it a test run on a 65# bow and dry fire it a couple times. That will tell the tale right there….   Kirk

[kennym]

I think just heat treated . They do poplar too .

I just wondered if it was too brittle for a riser but I guess amberboo is heated too

Heat treated bamboo vs natural bamboo definitely increases the deflection and compression strength, and is preferable in bow laminations. But the flexible nature of the bamboo itself is till there.

But heat treating Ash and poplar is definitely going to make it brittle. It may work just fine for a riser if it can hold up to the shock.  They didn’t have any technical specs on elasticity, or hardness, or mass weight density that I found. 

I’d say give it a test run on a 65# bow and dry fire it a couple times. That will tell the tale right there….   Kirk

I'd thought of that Kirk,but hate to waste good materials. LOL

[Kirkll]

Well it’s better than the alternative I’m thinking…. I rather watch one come apart on the shooting machine than have it snap in my hand at full draw. But I’d bet the ash is pretty strong stuff. Even untreated you could use it for riser wood in moderation.

For guys building one piece bows wrapped in glass with no wild riser shape. It will probably work great. But I don’t think I’d try a wild shaped ILF riser cut way past center with the stuff…. Just saying…

[Appalachian Hillbilly]

I have been using some torrifed maple and it is too brittle. Gorgeous for furniture and other stuff.
The place I get it from carries torrifed ash, maple and poplar.

It is all very brittle...as kennym has said.

I might would use it as accents in a riser that has been strengthened .

[Mad Max]

I have been using some torrifed maple and it is too brittle. Gorgeous for furniture and other stuff.
The place I get it from carries torrifed ash, maple and poplar.

It is all very brittle...as kennym has said.

I might would use it as accents in a riser that has been strengthened .

Where have you been?
The Classic is in 2 weeks