umnumzaan thumb stud came off

Incredible.

How do you convince your self to 'go to work' the next day after that?

All the best to you.
 
bigmark408 said:
Are you a soldier ? you speak of a "war zone"....I served and any folder i carried was not something i would bet my life on unless it was to dull to open MRE's.

A large fixed blade may be better suited for the keyboard commando.

BTW..Chris did not ask that people not speak of issue's.

These are just my opinions.[/QUOTe

I don't think there's any reason to call anyone a keyboard commando. I hope you weren't refering to me as I never claimed to be a commando of anykind. True fixed blades are inherently stronger and better suited for some things (that's why I carry a busse:D) But I use a folder about 99 percent more than my fixed blade and I sure as hell don't sit at a desk. I'm an FO in the 10th Mtn. Div. As far as CRK response ya it sounded a little standoffish;) but I'm not gonna get my feelings hurt over it I imagine owning a large knife company that has as many critics as expensive knives do gets a little frustrating. I really don't see an issue with it. We are all more knowledgable of our knife and the company Nobody is trying to bash CRK about this whole deal great product with great service proved again
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Hey Joe, glad you made it out alive.

I dont think Chris was specifically referring to this thread when he said to try to solve it with CRK first before posting ignorantly on the forum; I believe he was referring to some other people, such as the guy who bullshitted a story about how CRK wont fix his 'barely used' sebenza free of charge. Its not hard to understand the frustration because if Chris didn't posted proof many people would have believed that idiot and turned away from CRK.
 
Loc-Tite is good sh*t. I once repaired a part on my Glock 22 with it and it held up to repeated firings for some time after.

Glad you all walked away from that sh*tstorm. Best of luck to you and your squad.

joebobx said:
I got an email from CRK today.They said some loctite should do it just fine and they explained the older thumbstud thing. I'm glad it's a solid now and hopefully that's what my zaan gets when I send it in when I get back I did call then send an email to them first before I posted about it. But I'm not sure about the time difference and I think it may have been after hours. Either way they got back to me within 48 hours which is more than acceptable. I'll find some mechanics and score some loctite. I thought about just putting it away and carrying something else but that wouldn't make much sense. I'm done not using my "high dollar" knives like having a vette and never driving it well I'm gonna "drive it till the wheels fall off" so to speak. Then here in a few months I'll send it in for the spa treatment and a new thumbstud. I'm confident that when I need it for something besides mres and 550 cord I'll be glad that's the knife I'm carrying and if something happens to it I'm confident CRK will handle it appropriatly. Like I said before this wasn't suppossed to be a "drama" thread just informational. I know I learned alot about my knife and glad that I did. Thanks alot for the support guys I relayed it to all my soldiers
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My Umnum. has a July 13th 09 birthday and it looks alot like it has a two piece thumb stud to me.

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joebobx said:
bigmark408 said:
Are you a soldier ? you speak of a "war zone"....I served and any folder i carried was not something i would bet my life on unless it was to dull to open MRE's.

A large fixed blade may be better suited for the keyboard commando.

BTW..Chris did not ask that people not speak of issue's.

These are just my opinions.[/QUOTe

I don't think there's any reason to call anyone a keyboard commando. I hope you weren't refering to me as I never claimed to be a commando of anykind. True fixed blades are inherently stronger and better suited for some things (that's why I carry a busse:D) But I use a folder about 99 percent more than my fixed blade and I sure as hell don't sit at a desk. I'm an FO in the 10th Mtn. Div. As far as CRK response ya it sounded a little standoffish;) but I'm not gonna get my feelings hurt over it I imagine owning a large knife company that has as many critics as expensive knives do gets a little frustrating. I really don't see an issue with it. We are all more knowledgable of our knife and the company Nobody is trying to bash CRK about this whole deal great product with great service proved again
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Being that i quoted exmachina...that would meant that my comments were directed at him.
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Buffalohump said:
Haze, just don't plan any day trips to a war zone and you should be fine. ;
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Well, there is one or two on my list............:p

To be honest a 2 piece thumb stud dosn't bother me at all, if I do have any problems I know it will be sorted out by CRK any way :thumbup:
 
Haze said:
My Umnum. has a July 13th 09 birthday and it looks alot like it has a two piece thumb stud to me.

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With this knife barely being 3 months old....I would assume that it would not be considered an "early model" and would have a solid thumblug...??

CRK reply as quoted below...
"We have remade the relevant fixtures and have taken the additional precaution of redesigning the thumblug into one solid press-through piece."

Is the solid thumblug is in use yet? or is it still in the design stage?
 
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Kdarmy said:
With this knife barely being 3 months old....I would assume that it would not be considered an "early model" and would have a solid thumblug...??

Reading CRK reply as quoted below...
"We have remade the relevant fixtures and have taken the additional precaution of redesigning the thumblug into one solid press-through piece."

Is the solid thumblug is in use yet? or is it still in the design stage?
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It looks like the thumb stud is sitting on the blade rather than pasing through it so I would be surprised if that thumb stud was a single piece.

I could be wrong of course :eek:
 
Haze said:
It looks like the thumb stud is sitting on the blade rather than pasing through it so I would be surprised if that thumb stud was a single piece.

I could be wrong of course :eek:
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I had to go look at mine, it looks the same as yours. If you take a small pen blade you can feel that the bar is two pieces. My card has June 09.

I too would like to know if the switch has been made yet, and if so when.

:cool:
 
Don't forget that the "thumblug" also serves as the "stop-pin" in this knife design. I would consider a two-piece thumblug/stop-pin inferior to a solid, full thickness, one-piece design. To me, if a thumblug falls off during use it is no big deal, but if the stop-pin falls apart it is a big deal. I can't believe that Chris' own personal Umnumzaan thumblug failed from something as common as "wrist flicking" :eek:.
 
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I too don't understand why it is not a one piece thumb lug. I don't see any reason why they are not one piece. More pieces to the puzzle just means more chance for error or failure.
 
wade _s said:
I can't believe that Chris' own personal Umnumzaan thumblug failed from something as common as "wrist flicking" :eek:.
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It failed during wrist flicking. It is one of the very earliest Umnumzaans made, and he has been deliberately overstressing it to see what needs further development. The thumblug showed it needed an upgrade.
 
Esav Benyamin said:
It failed during wrist flicking. It is one of the very earliest Umnumzaans made, and he has been deliberately overstressing it to see what needs further development. The thumblug showed it needed an upgrade.
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Very Well Said !
 
So I have thought about this issue a little, and IMHO a solid bar would better and now we know Chris is on the same page. So even if the switch was just made or has not been made yet, we all know that we are well taken care of should anything happen :cool:

Also a few more well known tough guy knives only have a blade stop that contacts one side of the handle. All Strider PTs, SnGs, and SMF all only contact the locking slab only by design. The rest sticking out on the side that does not matter, in theory you could cut off that excess on a SnG and boom.... you have the same looking stud as the two piece Umnuzaan stud is. Now drill a hole in the backside, stick another stud via a pegged press fit and it is the same. The fluff, of the extra stud is really more for looks, because on a Strider they only contact one side, and on a Umnumzaan the other side is also fluff.

Bu IMHO, Striders are tough as nails... and they have been doing the one side contact for awhile now and have not changed it so it must be working. (Kind of like the very small lockbar face contact that they have been doing for ever... Then Chris out did them with his Umnum detent. As it contacts the very bottom of the tang, and has a very very small contact area from lockface to tang.... BUT Chris's would be harder than hell the wear out, and also will not ever be sticky, and can also be repaired without throwing the lockside away and replacing it, because you can't add steel... Maybe stretch it??? Point is Chris has a lot going on with this Umnum.... and we really are good to go IMHO)


Also, another knife that is a tough guy knife that used the one side blade stop is the Jim Burke production rockstar. The blade stop is pressed in one side of the tang, the ride in a milled out area in the handle shaped like a arc. When you open the blade the end of the milled out arc stops the lock snaps over and it open and locked ready to go. It's also the same way for the closing stop, and a blade detent holds it closed. Cool thing it's all hidden, it looks like there is no blade stop... not on the blade and not on the handle but lockup is just as tight as any sebenza/Umnumzaan you have ever seen. Long story looooooonger :D Jim Burke, also used a one side blade stop by design, he just but the stop into the blade and buried it in the pivot and it's been working fine.




I would love to have a solid bar in my Umnum, but I think I'll be fine without it. Should it fall out, I would bet $100 Chris takes care of me ;) All though, I don't think Ill ever have a IED problem like the OP did to knock it out :o, or sling the blade open as hard as Chris did to get it to fail.

Thanks for reading the whole wall of text :D
 
Esav Benyamin said:
It failed during wrist flicking. It is one of the very earliest Umnumzaans made, and he has been deliberately overstressing it to see what needs further development. The thumblug showed it needed an upgrade.
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Esav, please go back and re-read Chris' post. He said "because I had been wrist flicking" (past tense) not "during wrist flicking". He said "early-style Umnumzaan" not "one of the very earliest Umnumzaans made". He never mentions "deliberately overstressing" in the post. Did you talk to Chris directly and get different facts than what he posted above? I am not from the camp that believes that merely "wrist flicking" a $400 work knife is considered abuse, so don't bother trying to convince me:barf:.
 
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