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Author Topic: Bruises on bamboo?  (Read 2561 times)

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Offline toomanyknots

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Bruises on bamboo?
« 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?
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"The way of heaven is like the bending of a bow-
 the upper part is pressed down,
 the lower part is raised up,
 the part that has too much is reduced,
 the part that has too little is increased."

- Tao Te Ching, 77, A new translation by Victor H. Mair

Offline adb

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Re: Bruises on bamboo?
« Reply #1 on: July 18, 2013, 10:40:47 am »
Not sure what you're talking about... could you post a pic?
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Offline PEARL DRUMS

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Re: Bruises on bamboo?
« Reply #2 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.
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Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline toomanyknots

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Re: Bruises on bamboo?
« Reply #3 on: July 18, 2013, 01:02:02 pm »
Quote from: adb on July 18, 2013, 10:40:47 am
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.

Quote from: 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.

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...
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"The way of heaven is like the bending of a bow-
 the upper part is pressed down,
 the lower part is raised up,
 the part that has too much is reduced,
 the part that has too little is increased."

- Tao Te Ching, 77, A new translation by Victor H. Mair

Offline BowSlayer

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Re: Bruises on bamboo?
« Reply #4 on: July 18, 2013, 03:52:44 pm »
Quote from: toomanyknots on July 18, 2013, 01:02:02 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?
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London, England.

45#@28"

Offline toomanyknots

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Re: Bruises on bamboo?
« Reply #5 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.
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"The way of heaven is like the bending of a bow-
 the upper part is pressed down,
 the lower part is raised up,
 the part that has too much is reduced,
 the part that has too little is increased."

- Tao Te Ching, 77, A new translation by Victor H. Mair

Offline adb

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Re: Bruises on bamboo?
« Reply #6 on: July 18, 2013, 05:49:00 pm »
Quote from: BowSlayer on July 18, 2013, 03:52:44 pm
Quote from: toomanyknots on July 18, 2013, 01:02:02 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.
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Offline BowSlayer

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Re: Bruises on bamboo?
« Reply #7 on: July 18, 2013, 06:32:00 pm »
Quote from: adb on July 18, 2013, 05:49:00 pm
Quote from: BowSlayer on July 18, 2013, 03:52:44 pm
Quote from: toomanyknots on July 18, 2013, 01:02:02 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
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London, England.

45#@28"

Offline adb

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Re: Bruises on bamboo?
« Reply #8 on: July 18, 2013, 10:25:33 pm »
Bamboo backed ipe. I went too far into the powerfibers and nodes, and it broke.
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Offline autologus

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Re: Bruises on bamboo?
« Reply #9 on: July 18, 2013, 10:50:20 pm »
Quote from: BowSlayer on July 18, 2013, 03:52:44 pm
Quote from: toomanyknots on July 18, 2013, 01:02:02 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
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Offline adb

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Re: Bruises on bamboo?
« Reply #10 on: July 19, 2013, 12:53:33 am »
 ;D ;D ;D
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mikekeswick

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Re: Bruises on bamboo?
« Reply #11 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  ;)
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Offline toomanyknots

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Re: Bruises on bamboo?
« Reply #12 on: July 19, 2013, 09:44:31 am »
Quote from: 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  ;)

lol, thanks mike. I'll try some leather dye on em...  :)
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"The way of heaven is like the bending of a bow-
 the upper part is pressed down,
 the lower part is raised up,
 the part that has too much is reduced,
 the part that has too little is increased."

- Tao Te Ching, 77, A new translation by Victor H. Mair
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