what s the reason for offcenter blade closed?

[Purelite]

why would a blade be off center when closed and straight as an arrow when open? Is there a way to get things straight ? maybe taking it apart and adjusting something?

[npueppke]

Sometimes frame lock/liner locks have this problem, simply because there is pressure on the blade tang which can push the blade off center. The pressure is removed when the blade is open, hence, the blade is straight. I have never had this problem with Spydercos, though.

Another thing that happens sometimes is a knife blade ends up off center when put together. I'm not sure why this happens, but in that case you would have to take the knife apart again, put put it back together, and maybe tighten the pivot all the way before tightening the other screws-you might have to play with it.

Finally, the Manix might have this problem on occasion because there is some looseness in the pivot by design. On mine I could push the blade to the side when it was closed, but it was rock solid when open.

Can you give some details about what knife it is and what lock type?

[Purelite]

Its a Manix C95FG lockback. Just got it and whilest playing with it in front of the TV (and not cutting myself yet) I realized its a bit offcenter when closed. I feel a bit of a click when opening and the tang clears the right scale as if it is rubbing against it. i am wondering now if this is also casuing the slower closing action also.

I have never taken a Spyderco apart but have read the takeapart threads here about it. Doesnt seem too bad to do as long as you take your time. I just didnt know if using a thicker washer on one side or soemthing like that was a tried and true method for fixing this

[Pneumothorax]

This is somewhat common for m2. When closed, mine is a bit off center and also can be wiggled side to side several mms! In fact mine has this side play all the way until opened. But once locked open, there is no side play at all. Rock solid. I don't know if tis a cbbl characteristic or not. There have been a number of threads on this topic though.

[chuck_roxas45]

Its a Manix C95FG lockback.

I don't think the OP is talking about a manix 2.

[npueppke]

Sorry I don't have any ideas based on your symptoms. It might just be not put together quite right for some reason, sometimes pivots can be kind of finicky. I would try loosening the screws that hold the scales on (without taking them off), loosening the pivot, then tightening the pivot completely, screwing the body back together, and loosening the pivot to adjust-but do so at your own risk. The sure-fire way to find out what is wrong is to send it to Spyderco, they would be able to tell you.

[Spyharpy]

I had a full size FG Manix with an off-center blade. I took it apart and it was missing a bronze washer on one side. Got some from Spyderco and now it's centered perfectly. Taking the knife apart isn't that difficult but be aware that if you void your warranty if you do so. You can always send it to Spyderco and they'll take care of it.

[Murdoc]

...and it is definitely easier to reassemble than the Endura/Delica 4's :)

Here are a few pics to give you an idea what to expect when taking it apart (this is a Mini Manix, but the full size Manix should be quite similar):




Dennis

[jackknifeh]

I read about this problem in this forum about a month ago. The fix involved loosening the screws in the handle so the handle scales and liners are not squeezed tight togther. Then you probably need to put the pivot section of the knife in a vise and tighten just enough to hold it with cloth or something to keep the knife from being scratched. Look at the closed blade and try to push the handle from side to side until the blade is in the center of the slot. While holding the handle in this position re-tighten the screws and that should hold the handle in position.

I HAVE NEVER HAD THIS PROBLEM OR PERFORMED THE FIX. This is how I understood the problem described by someone else and the fix suggested by another person on this forum. I would suggest you get confirmation of my understanding before touching your knife with any tools unless you are used to knife repair/adjustment already. All I have ever adjusted on a folding knife is tightening or loosening the pivot screw so I am no expert at all.

Good luck,
Jack

[chuck_roxas45]

I have tried this on liner locks before but never on lockbacks. If you are just a little competent with tools and using them, this one is worth a try.

1. With the folder closed, wedge a folded piece of paper between the blade and the side of the handle that you want to move it away from.

2. With the wedge in place, loosen the pivot and the scale screws. Don't remove any of the screws, just loosen them.

3. Without doing anything else, tighten the pivot and the scale screws. This might be a good time to put locktite on the screws.

4. Adjust the pivot to your desired tension.


A probable explanation of why this works is that the when the pivot and scales were tightened at the factory, the scales were locked in place by the screw's tension without being square to each other.

[npueppke]

chuck_roxas45 provides a much better explanation of what I had in mind. I couldn't remember the exact procedure, but have done it with my Sage with success, but tried it with a Boker that was way off center with no change. Again, might be best to send it to Spyderco.

[26.2Madness]

why would a blade be off center when closed and straight as an arrow when open? Is there a way to get things straight ? maybe taking it apart and adjusting something?

Poor assembly, engineering and/or quality control.

[The Deacon]

why would a blade be off center when closed and straight as an arrow when open? Is there a way to get things straight ? maybe taking it apart and adjusting something?

Possibly because it's much easier to see that a blade is a millimeter or so off center when it's sitting between two parallel slabs of metal than when it's not.