Case Carbon Fiber Series

[Obsessed with Edges]

I have to guess that the center pin "hump" is some peculiarity of the manufacturing process. The strength of carbon fiber comes from having the "fabric" laid with the fibers in selected orientations. Drilling that structure, particularly near an edge, would disrupt the "layup" and potentially cause strength issues. It may be made with a dummy pin in the mold while the plastic is injected so that hump is built into it. Probably the same thing with the other pins, but since they aren't near the edge, no hump is formed.

This is what came to my mind, that perhaps the hump was formed during the drilling of the hole for the anchor pin, as if the 'grain' (fiber) of the material is slightly displaced to the weaker side near the edge, as the drill enters the material. On knives I've seen with this, it looks as if the edges of the CF scales have been ground/sanded in the finishing (buffing) stages of manufacture, after the knife is fully assembled, but the tell-tale hump remains. I might even have a CF knife with liners (stainless) that exhibits the same thing. I'm betting it's a result of the CF scale being drilled near an edge, as opposed to the material moving or being displaced by stress exerted by the anchor pin itself; that obviously shouldn't happen anyway, on knives already including a strong liner.


David

 

[navin74]

I ran into this problem making a linerless knife with g10. I drilled the holes in the slab well before shaping close to the hole. The first time the spring was placed under tension, it created a small hump or displacement. It never changed from that point on and the person who owns the knife uses it daily and it works fine. I bought my dad a carbon fiber sodbuster and it had the same displacement. It is a super light knife and I would love for them to make a swayback gent out of the material.

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Thank you,
Nathan