Trad Gang

Main Boards => The Bowyer's Bench => Topic started by: stillhunter on January 21, 2020, 10:37:20 AM

Title: Tempering core lams
Post by: stillhunter on January 21, 2020, 10:37:20 AM
Just wondering. How many of you temper bamboo lams?I have built quite a few bamboo core bows over the years and never have but some highend bowyers do so. What do you think?Also although bamboo is a grass would other woods benefit from tempering.You that do temper how do you do it?Thanks.
Title: Re: Tempering core lams
Post by: Flem on January 21, 2020, 11:37:14 AM
This is fairly comprehensive;

http://www.powerfibers.com/BAMBOO_IN_THE_LABORATORY.pdf
Title: Re: Tempering core lams
Post by: Pat B on January 21, 2020, 03:59:24 PM
The belly lam would probably be the only lam that should be tempered.
Title: Re: Tempering core lams
Post by: stillhunter on January 21, 2020, 06:40:04 PM
Thanks Flem.Very interesting take Pat but makes sense.
Title: Re: Tempering core lams
Post by: bigbob2 on January 29, 2020, 12:29:28 AM
I used both natural and "coffee" 'boo flooring and anecdotally believe the 'coffee' has already been heat treated over and above the natural. I also "believe' the coffee presented a slightly better performing bow. but don't have any chrono figures to substantiate this.On another note I have to almost curtail my bow building after an almighty health scare. I hope to still make the occasional on,perhaps more self bows. Years of working without dust extraction, only a particle mask may have left me compromised.all my tests have returned negative but some symptoms persist. So guys really look after yourself , in the end the only thing we all really need is our health.
Title: Re: Tempering core lams
Post by: stillhunter on January 29, 2020, 04:48:29 PM
Thanks bigbob2.My brother in law has been turning wood and making furniture for years and just had his first bad reaction from cocobolo. He is done with that wood. So I guess we never know.