Carbon fiber handle material

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May 7, 2008
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I notice very little use of carbon fiber as a handle material. I am intending to make a knife that has such.

Is there any reason folks are not using it?.. asside from the expense...but compared some of those exotic looking handles I see.. no way carbon fiber is more expensive.

Must be some other reason.. ???
 
It's just nasty stuff to work with. Dust from sanding it is an extremely bad skin irritant (touch it once and itch for two days) and an even worse lung irritant. Also, pre-made laminates only look good for parts with large flat areas. Anything with a lot of contour needs to be molded or it's the effect is lost.
 
N M,

Carbon fiber is expensive, but finding that material in the correct, work able thickness can be a problem. Military and aircraft market seem to drive the price of this product. I believe it would more popular, if there was a seller that would offer custom carbon fiber detail woven in and offer various color combos. But that would be a small market.
 
It's just hard to find in nice pieces. Some patterns will become mottled as already stated and it's itchy/bad for your lungs. I know several makers who use it, I've done a couple handles/bolsters with it.
 
I have some it really does suck to drill, grind....pay no mind it will kill you....but it sure does look cool.

Halpern has some that I have been using and I like it, it has a coarse peel/texture on one side.

Spencer
 
N M,

Carbon fiber is expensive, but finding that material in the correct, work able thickness can be a problem. Military and aircraft market seem to drive the price of this product. I believe it would more popular, if there was a seller that would offer custom carbon fiber detail woven in and offer various color combos. But that would be a small market.

I'm your man. If you will work with the cost, I'll be happy to work with the materials.
 
Fod. I would suggest before you get alot of stuff to try making anything with carbon fiber you first make a small piece and then send it to someone who has done a lot of work with carbon fiber for handles. I say this for a couple of reasons. One is cost. I priced carbon fiber to make handle material and it isn't cheap. Now that doesn't matter if a maker is willing to pay for it. That said the epoxy that is used in commercial grade carbon fiber much less the some of the military stuff is a world away from most epoxy that you run across. Of course I do not know what you use, but I know it is several steps up from what I am using and I did not use low end epoxy by any means. Th point I am making is that if a maker is used to using super F22 Raptor carbon fiber and expect something very close to that as a finished product then it may be very very hard to make something that will live up to that. More so when they consider the price. Just some thoughts and wish you luck if you do go for it. I now a lot of makers look for a steady good source of carbon fiber.
 
There are companies that will sell you custom made sheets of any thickness and type...even laminated stuff.

And there are many companies that you can purchase a variety of thicknesses and weave. I would have to say I have seen folks using some pretty exotic material for handle scales from some tree that grows in one part of some jungle and only on Mars.... and no way that is cheaper than couple sheets of carbon fiber.

There are also some robot part companies that sell the stuff.

Car accessory and motorcycle accessory places will also create custom carbon fiber sheets..... and those people are pretty serious about looks.

With regards to the F22 raptor version of carbon fiber.. although I am not 100% positive.. my guess is a govt contract that is spending a billion dollars on the stuff probably gets the pick of the lot... so I would agree with mark about double checking with any client..
 
Over the past few months I have been able to buy 5 or six different carbon fiber patterns in thicknesses ranging from 1/16" which i use for small gents folders to 7/16" for larger fixed blades on Ebay. It dulls bits fast but grinds like a dream..and in fact if you don't watch it closely you can grind off way too much way too fast. I wear a mask and the dust does not affect my skin at all that I can remember. I like it a lot.
 
Fod. I would suggest before you get alot of stuff to try making anything with carbon fiber you first make a small piece and then send it to someone who has done a lot of work with carbon fiber for handles. I say this for a couple of reasons. One is cost. I priced carbon fiber to make handle material and it isn't cheap. Now that doesn't matter if a maker is willing to pay for it. That said the epoxy that is used in commercial grade carbon fiber much less the some of the military stuff is a world away from most epoxy that you run across. Of course I do not know what you use, but I know it is several steps up from what I am using and I did not use low end epoxy by any means. Th point I am making is that if a maker is used to using super F22 Raptor carbon fiber and expect something very close to that as a finished product then it may be very very hard to make something that will live up to that. More so when they consider the price. Just some thoughts and wish you luck if you do go for it. I now a lot of makers look for a steady good source of carbon fiber.

Thanks Mark.

I have made up some in the past on a sporadic basis. It usually does not go past the quoting step, as the price tends to cool people to the material fast. Of course, being handmade in the United States does not help with the costs:). In my experience, the CF (and the basalt fiber) are some of the easiest materials to work with. It cuts easily and wets out nicely. I make most everything to order, especially with CF, I do not keep it in inventory due to the cost, but my supplier ships pretty quick.

In laid up form, as mentioned, it grinds very nicely, but acts kinda brittle when there is a machining process is attempted (drill, mill, etc.) It is death to cheap saw blades.;)

I do have a few pieces out to knife makers just now, hopefully I will get some feedback from them soon. I know my stuff will not be used for anything structural or the like, it just needs to be consistent and finish nicely. As you know, this is primarily a resin issue...use quality stuff and don't press it all out.

Most of my experience with CF (and kevlar) has been with relatively thin somewhat complex parts for ATVs and motorcycles. These are only ground on the edges to shape and need to be finished to a high gloss. We use various coating to achieve this. We do some flat laid stuff that comes off the plates as a high gloss that requires nothing further. That is all in the prep, though.

I do have some .150" thick carbon fiber/basalt fiber hybrid for sale just now, as well as a tanto I made up using some silk and cf laminate (talk about $$$!!!) pic attached. The material on the bottom is the basalt fiber/carbon fiber hybrid (3/5 the cost of pure CF). The only problem I see is that it is a twill. Some folk prefer the plain weave. The tanto is carbon fiber with copper colored silk (I wish I had done something with more contrast), sanded to 800 grit. This is what I can offer at this time, and comparable to what I would make up for an order just now. It is hard to get a good pic without a light tent, but this shows what my material looks like. I cannot speak to how this compares to the super F22 Raptor carbon fiber.

Thanks for the input and interest.
 

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Might not be alot of request for it. If you were to have a "Show your grip material thread" I would bet Carbon Fiber would be lesser owned scale..Pardon the pun... I love the material for looks and Cool factor only. I think most people are more traditional or standard equipment minded.
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Try CANMANSTAN on ebay. He has got carbon fiber scale blanks already cut and ready to go. Just be sure not to sand the top surface too much, because you will start to sand into the weave. Sand the back side to achieve the thickness desired. I used wet sandpaper on the top surface, and sanded the bottom to a wedge shape to make the handle thicker at the rear and thinner by the blade. Very easy to shape and finish. I would only use carbon fiber myself on flat work. I havent tried but if you were to contour the top surface you would probally loose the pattern, thats my guess. I would send a link, but i am not sure i can, so look under carbon fiber knife scale balnks on ebay and i am sure you will run across some in different sizes and thicknesses. I hope this helps someone out there.
 
When I profile the handles on the CF slipjoints I round the handles quite a bit. Yes..you loose the perfect mat design but gain a...kinda...holgraphic design. I like it...it is very interesting. Grinding into the mat does not raise the fibers or anything.
 
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