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How tough is the Carbon fiber?

Posted: Sat Feb 16, 2013 2:51 pm
by Ghost
Greetings. I tend to use my knives to remove bottle caps. I know that FRN and G10 gets a bit scuffed from this. What about carbon fiber? Or the Titanium for that matter? Will bottle caps leave little marks in a CF handled or Ti-handled knife? :)

Posted: Sat Feb 16, 2013 3:16 pm
by Blerv
It should be about as tough but is still "misuse" and could result in snapping a chunk of CF off or deep scratches. Ti would be stronger but still scratch up.

Ever consider a small multitool? A Gerber Shard on the keychain would cost like $3 and works great.

Posted: Sat Feb 16, 2013 3:21 pm
by IG-88
Yeps CF will chip and Ti will scratch. I would also advise to get a small keychain bottle opener/tool. Or use a Swiss Army Knife as backup, even smallest have caplifters :)

Posted: Sat Feb 16, 2013 3:29 pm
by mikerestivo
I would agree with Blerv and IG - you can certainly make a knife with CF scales work for removing bottlecaps, but you are wasting a good tool on a task for which it was not intended.

Posted: Sat Feb 16, 2013 4:04 pm
by Ghost
It's just that the knife is always at my pocket, and thus more accessable than having to get the proper tool out on an SAK. Though I guess I'll get an ordinary bottle opener then :)

Posted: Sat Feb 16, 2013 4:11 pm
by gaj999
Ghost wrote:It's just that the knife is always at my pocket, and thus more accessable than having to get the proper tool out on an SAK. Though I guess I'll get an ordinary bottle opener then :)
Your teeth are always in your mouth. Some folks use theirs to remove bottle caps. Why don't you do that? No need to fish a knife out of your pocket. ;)

Gordon

Posted: Sat Feb 16, 2013 4:17 pm
by Koen Z
Use the spine of the closed knife; easy and no scratching on the knife.

Posted: Sat Feb 16, 2013 4:43 pm
by Pockets
If your knife has full liners, I don't see why you couldn't use the edge as a bottle opener if you don't want to scratch the spine (spine method is probably best).

Posted: Sat Feb 16, 2013 4:45 pm
by mikerestivo
Another option is to only consume beverages that have twist-type caps...

Posted: Sat Feb 16, 2013 4:57 pm
by JNewell
Why not just stab the blade through the cap then pry it off? :rolleyes:

Posted: Sat Feb 16, 2013 5:02 pm
by ABX2011
Use a steel handled knife.

Posted: Sat Feb 16, 2013 5:13 pm
by mikerestivo
JNewell wrote:Why not just stab the blade through the cap then pry it off? :rolleyes:
That works too. Or use blade to saw through the upper part of the bottle neck, just below the cap.

Posted: Sat Feb 16, 2013 5:56 pm
by IceCold
Carbon fiber ANYTHING is Bad

Why? because of the years the resin used to fuse the carbon fiber sheets dries out. That make carbon fiber prone to breaking cracking and weakening.

Posted: Sat Feb 16, 2013 7:07 pm
by defenestrate
IceCold, do you have data on this or a source backed by data? I understand there are different methods of making carbon fiber materials and that the method of manufacture can make a big difference.

Posted: Sat Feb 16, 2013 7:35 pm
by chuck_roxas45
Get a waved endura or delica...those waves work fine for bottle opening...

Posted: Sat Feb 16, 2013 8:06 pm
by mikerestivo
IceCold wrote:Carbon fiber ANYTHING is Bad

Why? because of the years the resin used to fuse the carbon fiber sheets dries out. That make carbon fiber prone to breaking cracking and weakening.
Eh? I haven't seen this in anything carbon that I have ever owned. On my bike, I have or currently have carbon handlebars, carbon crankarms, carbon wheels/spokes, and carbon forks. Carbon fiber is used to make racing car bodies, shoe soles for cycling, racing wheels...well, the list is too long to note here. Not all of these items are meant to last forever, but I don't know what you mean when you speak of rate of supposed decay and weakening with regard to resin. And if the resin does dry out, as you say, wouldn't simply keeping it moist ensure that it lasts forever?

When you say "...of the years..." (assuming you mean "over the years), how many years are you talking about? I've got CF handlebars on both of my bikes that are still going strong after 13 years with no signs of any trouble. Are you coming with personal experience, hard data or referring to hearsay?

I've seen firsthand CF failures (again on bike stuff) and every instance that I saw resulted from direct trauma (i.e. a crash or accident) or improper installation, not to rule out possible manufacturing defect. I haven't yet seen cases of resin dehydration causing failure. If you know of any, can you share these? Thanks -

Posted: Sat Feb 16, 2013 8:33 pm
by Chipped Karambit
Do what I do, Hold the blade in a closed position, place the edge of the cap in the spyderhole, rip open. No problem at all

Posted: Sat Feb 16, 2013 8:55 pm
by Tally-ho
Several alternatives:

1- HOWTO: Open A Beer Bottle With A Piece Of Paper
[video=youtube;qrXmDiYHUY0]http://www.youtube.com/watch?v=qrXmDiYHUY0[/video]

2- Ring Bottle Opener
Image

3- key bottle opener
Image

etc...

Posted: Sat Feb 16, 2013 9:18 pm
by Bladekeeper
The motor industry is and has started to use titanium infused carbon fibre as its lighter and doesn't shatter at breaking point.
Wether under the usage of knife at breaking points I'm not sure but this is the latest upgrade as seen in the new model that replaces the zonda .
Ot but still relates to the op.

Posted: Sat Feb 16, 2013 9:19 pm
by Blerv
Resin is supposed to dry/cure, right? Excessive UV can damage and fade anything. Especially poor quality stuff. Look at most modded Honda's :p