Primitive Archer

Main Discussion Area => Bows => Topic started by: Lee Lobbestael on July 05, 2011, 07:12:05 pm

Title: Heat tempering bamboo with in oven
Post by: Lee Lobbestael on July 05, 2011, 07:12:05 pm

Is there any reason I can't heat temper bamboo backing strips in a big oven we have at work at like 300 f for a couple hours?

Title: Re: Heat tempering bamboo with in oven
Post by: Bow Nut on July 05, 2011, 07:17:37 pm

to hot a good temp is around 200 to 220 for 5 hours.  300 might give you the carbonized look and feel which works better on belly's than backs from what I know maybe some one else knows more about temps but 200 has always been the suggested temp for a backing.

Title: Re: Heat tempering bamboo with in oven
Post by: mullet on July 06, 2011, 12:40:12 am

 You better know what you are doing, or you are going to destroy a lot of boo. :'(

 All bamboo is different, I don't think you can have one "set of rules that fit all" with the Temps.

Sounds like a question for Robustus.

Title: Re: Heat tempering bamboo with in oven
Post by: SA on July 06, 2011, 12:44:46 am

i just glued up a bbo , do you sand the nodes down and then use a torch on the back or stain? sorry to hijack

Title: Re: Heat tempering bamboo with in oven
Post by: mullet on July 06, 2011, 01:01:34 am

 I wouldn't sand the nodes or put heat to it after it was glued up. I would have carmelized it with a heat gun before I glued it up.

Title: Re: Heat tempering bamboo with in oven
Post by: Bow Nut on July 06, 2011, 01:36:45 pm

yea I agree from what I know robustus might be the one to answer this one properly.

Title: Re: Heat tempering bamboo with in oven
Post by: macbow on July 06, 2011, 03:15:29 pm

Can someone answer or point me to info on the why of heat treating bamboo backing?
I put mine in a dry bo0x to get the moisture content down.
I do sand the nodes but just a little to remove rough edges.
I do not use a torch on the back. I just scrape or sand the coating off so it will take stain and then use tru-oil.
Ron

Title: Re: Heat tempering bamboo with in oven
Post by: Bow Nut on July 06, 2011, 03:24:01 pm

heat treating strenghts the bamboo if done right plus it crowns the belly so you can reflaten and never have to worry about it crowning again after it is glued causing a bow failer when you need it most.