yojimbo 2

Evil D · #61

You keep saying it hit the "detent'...I'm not sure we're using the right terminology. The detent is a dimple drilled into the tang of the blade that you can't see without taking the knife apart, that a ball bearing embedded into the lock tab sits in when shut that keeps the knife from opening. The blade wouldn't hit that since it's part of the blade.

If you mean the blade hit the last pillar/standoff, which is the only thing close to the tip/pic that you posted, then I would seriously like to see the knife. I'm not calling you a liar, I'm just saying that it should be physically impossible given the design of the knife, and if it actually did happen then you should have an insane amount of blade play, probably in every direction, and the knife is defective and needs sent back to Spyderco for evaluation. Either the stop pin is somehow not in the right place (which would allow this to happen EVERY time you close the knife) or your last pillar is in the wrong place which would also allow this to happen every time you close the knife.

Liquid Cobra · #62

Yeah my bad. Not the detent. I'm still new and learning haha. The last pilar is what it hit. There is no blade play thankfully. I'm hesitant to close the knife with any kind of force as I'm afraid the damage it again. Once it's closed I've squeezed the blade and it doesn't move so I don't understand it either.

Maybe do me a favour and close your yo2 as hard as you can to see if it happens lol. Thanks for working through this with me though.

Evil D · #63

Liquid Cobra wrote:Yeah my bad. Not the detent. I'm still new and learning haha. The last pilar is what it hit. There is no blade play thankfully. I'm hesitant to close the knife with any kind of force as I'm afraid the damage it again. Once it's closed I've squeezed the blade and it doesn't move so I don't understand it either.

Maybe do me a favour and close your yo2 as hard as you can to see if it happens lol. Thanks for working through this with me though.

I don't have it at the moment, but here's a pic to show you what's happening inside the knife, and why this can't be possible without some kind of major malfunction.

In this pic, on the bottom just behind the edge there is a little dip in the tang of the blade. That dip hits against the under side of the stop pin that the blade hits when open. So, unless the blade can somehow travel past the stop pin when closed, there's no way the blade can move that far. It's a physical impossibility lol.

Also in that pic, you can see the little dimple that the detent sits in to keep the blade closed. Either way, if it did happen, send it back to Spyderco because something major is wrong. They need to see this sort of stuff to prevent it from happening in the future.

senorsquare · #64

Liquid Cobra wrote:Yeah my bad. Not the detent. I'm still new and learning haha. The last pilar is what it hit. There is no blade play thankfully. I'm hesitant to close the knife with any kind of force as I'm afraid the damage it again. Once it's closed I've squeezed the blade and it doesn't move so I don't understand it either.

Maybe do me a favour and close your yo2 as hard as you can to see if it happens lol. Thanks for working through this with me though.

No blade play means your stop pin is solid and if your stop pin is solid then there should be no way the blade is hitting any of the internal parts of the knife, unless as D stated, something is in the wrong place. Sounds like you either A) got a fake or B) have something badly out of whack in which case you should send it in.

Can you post some photos of the entire knife in the open and closed position for comparison purposes?

endgame · #65

I hope you get this fixed my yojimbo 2 is just so smooth and tight its a shame you cant feel that with youres.his style warncliff blades are just so sharp.I have 2 ronin fixed blades from him a custom Damascus and a spyderco production version number 785 .let me tell you that you could stab a hair in mid air with the point on the ronin or you could split a hair the same way.if you can find one pick it up it is pretty much a fixed blade yojimbo.I would love to see a sprint run of them.Mike I got a Damascus ronin made or designed by you but I don't no wich. Does the Damascus version have any connection with spyderco? Besides beeing damascus the holes in the handle is the only difference In the 2 .Could you give me more info the Damascus ronin?Also talk sal into making a ronin sprint run?If you have the time? Ha just kidding! but really I'm not.lol

Liquid Cobra · #66

Liquid Cobra · #67

I've tried closing it with a moderate amount of force and its not damaging the blade at all. So that is good. However, if I squeeze it while closed towards the pillar I am able to get the blade to move down enough that it looks like it would touch the pillar. I've already disassembled the knife so the warranty is void. She's my problem now. I want to be clear that I love this knife and am very happy with my purchase. The damage to the blade was an error on my part and after all of this I'm pretty certain that the knife is in perfect working order. If anyone wants to try and squeeze their blade while shut and let me know if they can get it any closer to the pillar it would be appreciated.
So now that that's all sorted...when is the carbon fibre version coming out????

Clip · #68

Cobra, hate to say this but you're not crazy. I was slightly disappointed when I opened my Yo2 from Howes last week or week before and found the exact same thing you're describing. This is the untouched factory edge. However, after opening and closing it repeatedly, I was satisfied that it wouldn't make contact again during normal use.

I am able to squeeze the blade enough that it will eventually come into contact with the pillar; however, this is with both thumbs on the spine of the blade pushing down. It would take quite a close to do that. I'm wondering if a few of these got dropped after assembly?

senorsquare · #69

I tried this with my paramilitary 2 and it looked like I was able to detect a slight movement in the blade when I was squeezing toward the tip of the blade. I am guessing that if if a person squeezes hard enough that they could induce some flex in the handle.

Liquid Cobra · #70

Sweet. I'm not crazy lol. A quick sharpening on your yo2 should fix it up nice. Thanks for posting!

BAL · #71

When either one of mine is closed and I squeezed I get no movement by the blade.
My blade could never touch the pin. I am not sure what the situation is with any that
would touch. If the pivot is tight and there is no blade play and teh pivot, tang, pins etc
are all correct, this shouldn't happen. I have 1/10th of an inch or so between the blade
and the pin when closed and it doesn't move at all.

I would love to see one or have Mike or someone else at Spyderco looks at one of these
to see what the situation is. No one is saying that anyone is crazy or not telling it like it is,
we are just curious as to what is going on.

Evil D · #72

I was just pressing the crap out of my Para 2 and any movement I can see is only side to side flex. How about a video of the Yo 2 moving beyond the stop pin?

Clip · #73

David, try your Yo2. The curved spine of the blade where the thumb naturally falls is thick enough and at the proper angle to really apply some force. Like I said, this isn't an activity I usually perform when carrying my knives so there's really no need to try and force the blade down more than it wants to travel, but I'll try to take a picture or short clip of it moving closer to the spacer.

Evil D · #74

Clip wrote:David, try your Yo2. The curved spine of the blade where the thumb naturally falls is thick enough and at the proper angle to really apply some force. Like I said, this isn't an activity I usually perform when carrying my knives so there's really no need to try and force the blade down more than it wants to travel, but I'll try to take a picture or short clip of it moving closer to the spacer.

It's off getting reground. I wonder if there are enough variances in the actual grind of the edge that some blades are wider from spine to edge, and that would allow some level of contact? I know my Yo 2 in particular, the grind of the edge was lower than the flat part of the tang just behind the edge. I guess it might be possible that some are even lower? When I get mine back I'm planning on taking it apart again to take more pics of the scale mods I've done to it. When I have it apart I'll take pics of the blade and see how close it can get to that pin.

Liquid Cobra · #75

I was wondering the same thing when I was looking at mine last night.

Evil D · #76

One thing's for sure, I never "gently" close my Yo 2...I press the lock and swing the blade shut as quickly as I can because I'm usually in a hurry, and it has become second nature. If that alone could cause the blade to impact that pin, mine would have done it long ago.

Either way, if this is at all possible, give it a few months of sharpening and you'll likely remove enough metal to give sufficient clearance that it's no longer an issue.

Liquid Cobra · #77

It doesn't seem to happen when I close it like you describe. It was just that one time I slammed it shut.

ZL1 · #78

Clip wrote:Cobra, hate to say this but you're not crazy. I was slightly disappointed when I opened my Yo2 from Howes last week or week before and found the exact same thing you're describing. This is the untouched factory edge. However, after opening and closing it repeatedly, I was satisfied that it wouldn't make contact again during normal use.

I am able to squeeze the blade enough that it will eventually come into contact with the pillar; however, this is with both thumbs on the spine of the blade pushing down. It would take quite a close to do that. I'm wondering if a few of these got dropped after assembly?

I had this happen to my Yojimbo 2
But only after I swung the blade shut with some force.
I don't think I'll have any problems unless I thwack it again .
Was a weird phenomenon that I kept doing to confirm it though :p
Rolls are fixable, but there's that little mental reminder in the back of my head now

RanCoWeAla · #79

I like the Superleaf better than either the PM2 or the Yojimbo. Don't really care for the Wharncliff Blade. It's to aggresive at the tip and not aggresive enough at the belly plus you have to be extremely careful when sharpening or you will ruin the tip.