Sebenza Overrated?

[misterjuiceman]

Yes, but what makes the pivot so much better? Details?

there's a pivot bushing, which is a cylindrical sleeve of nearly the exact same thickness as the blade plus the two PB washers. since the tolerances are so tight, you can screw down the pivot screw all of the way, and the pivot bushing will ensure that you have exactly the right amount of tension so that the blade deploys smoothly. Scott Cook's Lochsa has the same type of pivot bushing setup. I believe there's a Spyderco with a similar setup, but the tolerances aren't quite as tight. In some cases, having poor tolerances with a pivot bushing setup will just introduce permanent play (if the pivot bushing is too long, you can't possibly remove the play).

 

[aadhtbb]

I carried a SBZ21 for 3 months,and a military for a week. I prefer Military.

 

[jill jackson]

I like the "sebbie" with the wood inserts, the polish on the blade and handle with the lock-bar left unpolished is way nice and I ordered one even! I think I'll like it with the embellishments.

 

[kreole]

there's a pivot bushing, which is a cylindrical sleeve of nearly the exact same thickness as the blade plus the two PB washers. since the tolerances are so tight, you can screw down the pivot screw all of the way, and the pivot bushing will ensure that you have exactly the right amount of tension so that the blade deploys smoothly. Scott Cook's Lochsa has the same type of pivot bushing setup. I believe there's a Spyderco with a similar setup, but the tolerances aren't quite as tight. In some cases, having poor tolerances with a pivot bushing setup will just introduce permanent play (if the pivot bushing is too long, you can't possibly remove the play).

I think Spyderco's Manix II and know the Paramilitary II use the pivot bushing.

The pivot bushing I hope will become a standard feature in the knife industry.

 

[cziv]

I think Spyderco's Manix II and know the Paramilitary II use the pivot bushing.

The pivot bushing I hope will become a standard feature in the knife industry.

Please don't call me on this, but over the course of the last couple of years, while fiddling around with folders, I've ran into the the pivot screw threaded into a pivot bushing more than a few times. I don't know if Chris Reeve thought it up but I know I've had to knock a female threaded bushing out a few times to remove a blade. I like it - beefs up the pivot area.

 

[misterjuiceman]

I think Spyderco's Manix II and know the Paramilitary II use the pivot bushing.

The pivot bushing I hope will become a standard feature in the knife industry.

I was thinking it was the Manix II, but I was too lazy to check so I just left it vague. I didn't know about the paramilitary 2. I'm guessing for the paramilitary 2 that the tolerances are tight enough so that there's no blade play?

Please don't call me on this, but over the course of the last couple of years, while fiddling around with folders, I've ran into the the pivot screw threaded into a pivot bushing more than a few times. I don't know if Chris Reeve thought it up but I know I've had to knock a female threaded bushing out a few times to remove a blade. I like it - beefs up the pivot area.

I never thought there were threads on the bushing, just that the tolerances were so tight that it had to be pushed out. It seems like threading the bushing wouldn't really add anything if the tolerance on the radius of the bushing is tight enough, since it'd more less be stuck in place.

 

[Gator97]

Well, everything I said was, afterall, my personal opinion.

Which is fine, I tried to separate opinion based points from measureable ones. No arguments on opinions.

As for the steel, I don't care for something I have to stuggle to sharpen. I keep my Sebenza sharp with a ceramic stone and a belt.

Have you handled, and sharpened S30V at 60-61 HRC?

In my experience, any steel is fairly easy to sharpen, (i.e. existing bevels are ok) unless one is grinding a new bevel or removing deep chipping, which implies removal of significant amounts of metal, but that's not as common, even on BF.

And I am quite sure you can not grind new bevel with ceramic stone, which I'd guess is around 800-1000 grit, even on 58 HRC S30V steel in any reasonable amount of time.

 

[cziv]

disregard

 

[misterjuiceman]

Disregard my remarks. I spent too much time in CA during the 60's. I could have dreamed that up or am misunderstanding what you guys mean.

This is what I mean, is this a bushing sticking up from the bottom (framelock) slab?

there's a bushing on that knife, but not where you're describing. the bushing is in the pivot hole on the blade. I believe the threaded barrel is just part of the pivot screw assembly. Strider and Rick Hinderer use a similar setup, but their knives have no pivot bushing. Also, the CRK Umnumzaan does it too.

 

[kreole]

edit:beat nevermind

 

[KeithAM]

Here's a link to the CRK website's instructions on how to disassemble, clean, and reassemble a Sebenza. The pivot bushing is pictured in the photos.

http://www.chrisreeve.com/sebenzaclean.htm

The pivot screw on a Sebenza is not adjustable--it's always fully tightened. The bushing mainains a precise clearance for the blade to open and close without play.

Buck 110s use a similar bushing.

 

[cziv]

Here's a link to the CRK website's instructions on how to disassemble, clean, and reassemble a Sebenza. The pivot bushing is pictured in the photos.

http://www.chrisreeve.com/sebenzaclean.htm

The pivot screw on a Sebenza is not adjustable--it's always fully tightened. The bushing mainains a precise clearance for the blade to open and close without play.

Buck 110s use a similar bushing.

I understand now. Thanks

 

[mendezj]

It depends upon what kind of knife you like, need, or are used to. I find the Sabenza blade too thickly ground. I prefer knives with a thinner blade. Other than that, it is a great knife and their customer service is top notch.

 

[Josh K]

What does the pivot screw - screw into? Right between these 2 pics, there's a pic missing of the installation of the pivot screw. I still don't get it in regard to why this is superior.


What about this from Phillip Dobson on another forum? Looks like an independant pivot bushing laying there, right botom. Image Courtesy of Mr. Dobson. (I hope).

I don't see a bushing, I see a pivot assembly.

 

[cziv]

I don't see a bushing, I see a pivot assembly.

Can we meet in the middle at a "threaded bushing?" Guess it doesn't matter really the Sebenza is a wonderful folder, just a smidge too short in the handle "for me" or I'd have one right now.

 

[Josh K]

Can we meet in the middle at a "threaded bushing?" Guess it doesn't matter really the Sebenza is a wonderful folder, just a smidge too short in the handle "for me" or I'd have one right now.

I thought the point of the bushing was to separate it from the rest of the pivot assembly. If the "bushing" is part of the pin sleeve I don't think it's serving the same purpose.

 

[misterjuiceman]

What does the pivot screw - screw into? Right between these 2 pics, there's a pic missing of the installation of the pivot screw. I still don't get it in regard to why this is superior.

Images courtesy of CRK.

Blade is inserted into indepenant bushing & blade assembly.

Pivot is all buttoned up - not showing the step to do it.

Doesn't explain what screws into what.

What about this from Phillip Dobson on another forum? Looks like an independant pivot bushing laying there, right botom. Image Courtesy of Mr. Dobson. (I hope).

it screws into the opposite pivot pin/screw head, but that's not the bushing. the bushing is specifically designed so that it's nearly the exact same thickness as the blade plus the two washers, that way when the pivot screw is tightened down, there's just enough clearance for the blade to move smoothly but without play. in a system as you've described, without a bushing, like the XM-18/Umnum/Strider folders, you can tighten the pivot down al lof the way and it'll stop the movement of the blade.

 

[Brennanscott]

Well call it over rated if you want but I got my first Sebenza yesterday.. Anyone wanna buy all my other knives?

 

[risen]

Well call it over rated if you want but I got my first Sebenza yesterday.. Anyone wanna buy all my other knives?

Sure. I'm guessing, now that you can walk on water with your Sebenza, your other knives are worthless to you, and you're willing to practically give them away. I'm interested.



Kidding, or course.

 

[Brennanscott]

Sure. I'm guessing, now that you can walk on water with your Sebenza, your other knives are worthless to you, and you're willing to practically give them away. I'm interested.



Kidding, or course.

Well if you have any Sebenzas for trade, PM me anytime, I won't miss my other knives that much.