Primitive Archer

Main Discussion Area => Bows => Topic started by: toomanyknots on July 18, 2013, 10:39:27 am

Title: Bruises on bamboo?
Post by: toomanyknots on July 18, 2013, 10:39:27 am
Any thoughts on these yall? I have a bow glued up with a pretty noticeable bruise in the middle (it's an elb). I have made a couple bows with bruises on the bamboo, but the bruises haven't been super bad. I'm really most concerned with the aesthetics on the bow, I was wondering if anybody has dyed a bruise here or there? Does a bruises indicate trouble or compromised power fibers?
Title: Re: Bruises on bamboo?
Post by: adb on July 18, 2013, 10:40:47 am
Not sure what you're talking about... could you post a pic?
Title: Re: Bruises on bamboo?
Post by: PEARL DRUMS on July 18, 2013, 12:22:44 pm
I always thought it was just a stain and not bruised. I scraped them clean and never had an issue.
Title: Re: Bruises on bamboo?
Post by: toomanyknots on July 18, 2013, 01:02:02 pm
Not sure what you're talking about... could you post a pic?

lol, I knew I should of just did that in the first place,  ;D.

I always thought it was just a stain and not bruised. I scraped them clean and never had an issue.

These stay on the bamboo after scrapping through all the rind, I wanted to do the same thing but was weary of scrapping too much bamboo and violating the back. I will post a pic in a little bit...
Title: Re: Bruises on bamboo?
Post by: BowSlayer on July 18, 2013, 03:52:44 pm
These stay on the bamboo after scrapping through all the rind, I wanted to do the same thing but was weary of scrapping too much bamboo and violating the back. I will post a pic in a little bit...

is it possible to violate a ring on grass?
Title: Re: Bruises on bamboo?
Post by: toomanyknots on July 18, 2013, 04:15:20 pm
Well from my very limited understanding of bamboo, bamboo has fibers right under the rind called power fibers similar to the fibers of a back ring on a stave, and these are what holds the bamboo together when stressed in tension.
Title: Re: Bruises on bamboo?
Post by: adb on July 18, 2013, 05:49:00 pm
These stay on the bamboo after scrapping through all the rind, I wanted to do the same thing but was weary of scrapping too much bamboo and violating the back. I will post a pic in a little bit...

is it possible to violate a ring on grass?

Yes it is... ask me how I know.
Title: Re: Bruises on bamboo?
Post by: BowSlayer on July 18, 2013, 06:32:00 pm
These stay on the bamboo after scrapping through all the rind, I wanted to do the same thing but was weary of scrapping too much bamboo and violating the back. I will post a pic in a little bit...

is it possible to violate a ring on grass?

Yes it is... ask me how I know.

Ok how? But only awnser if it won't lead to a two page essay :o I can't concentrate that long.  Kinda long story short. Thanks
Title: Re: Bruises on bamboo?
Post by: adb on July 18, 2013, 10:25:33 pm
Bamboo backed ipe. I went too far into the powerfibers and nodes, and it broke.
Title: Re: Bruises on bamboo?
Post by: autologus on July 18, 2013, 10:50:20 pm
These stay on the bamboo after scrapping through all the rind, I wanted to do the same thing but was weary of scrapping too much bamboo and violating the back. I will post a pic in a little bit...

is it possible to violate a ring on grass?

I have seen lots of grass that was large enough to make a bow with it but the DEA dug it up before I could collect any staves.  >:D

Grady
Title: Re: Bruises on bamboo?
Post by: adb on July 19, 2013, 12:53:33 am
 ;D ;D ;D
Title: Re: Bruises on bamboo?
Post by: mikekeswick on July 19, 2013, 04:35:49 am
Bowslayer - Of course it's possible to damage the fibers that are doing the tension work.......
TMK - don't keep scraping......don't do it man! As you already know just take the rind off and leave the 'bruises' well alone. Leather dyes work fairly well at concealling them  ;)
Title: Re: Bruises on bamboo?
Post by: toomanyknots on July 19, 2013, 09:44:31 am
Bowslayer - Of course it's possible to damage the fibers that are doing the tension work.......
TMK - don't keep scraping......don't do it man! As you already know just take the rind off and leave the 'bruises' well alone. Leather dyes work fairly well at concealling them  ;)

lol, thanks mike. I'll try some leather dye on em...  :)