just spent 3 hours reading old threads

V

Vermont woodsman

Joined
Jan 22, 2005
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I was looking thru old threads from as far back as 99, to read more about the lock engagement. Some people say 50% others say 75%...My question is arent all the blades made on a cnc jig? So what makes some lock up at 50 and others at 75. Are all the blade tangs cut at different angles? I would think its the cut on the blade tange that would dictate where the lock would stop. Or would it be the tension on the titanium lock slab? Any ideas???
 
use??

some people like to flick their knives...

I would say maintenance too.
 
I can only comment on the NIB condition of the lock - even though CNC machined, the blades are each individually hand fit, I believe. It only takes .001" to account for some travel across the base of the blade. In speaking with folks at the CRK shop, up to a 90% covg of the base of the blade is acceptable so long as the lockup isn't compromised.

I have noticed that depending on how you put the knife back together after disassembly, the lock bar placement can vary some.
 
Vermont woodsman said:
I was looking thru old threads from as far back as 99, to read more about the lock engagement. Some people say 50% others say 75%...My question is arent all the blades made on a cnc jig? So what makes some lock up at 50 and others at 75. Are all the blade tangs cut at different angles? I would think its the cut on the blade tange that would dictate where the lock would stop. Or would it be the tension on the titanium lock slab? Any ideas???
Click to expand...

Sebenza blades are profiled on a CNC mill. That is where the automated work ends and the craftsmanship begins. Your Sebenza blade was hollow ground by hand, and each blade is individually fit to a handle. The depth of the flat ground at the heal of the blade dictates where the lock stops. They are cut at the same angle. They will vary, but overall CRK does their best to maintain consistent lock engagement. You will find to that lock engagement will vary depending on how clean you keep your knife. Periodic maintenance is needed to keep your Sebenza operating at its peak. Don't flick your knife open!
 
I always had lockup at 30 to 40 percent and thats where I wanted it. Sometimes you could change the lockup position simply by the way you would reassemble it.
 
"The spec position for the lock is to cover 75% of the blade."

- Anne Reeve, 11/03/98

This is posted right in the forum in the second sticky. Now, that was 1998 -- maybe since then it's been changed to 50%.
 
It's been my un scientific observation that lock tension seems to have gone up significantly in the last several years. I imagine that engagement has on average increased due to this alone.
 
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