Sall or VInce: liner locking position??

P

ptn

Joined
Sep 6, 1999
Messages
389
In an earlier thread, it was suggested that I return my Military if I am not satisfied with the lockup. I am probably not experienced enough to make that call so I need help. (The knife has an ATS-34 blade with notches in the finger choil area and 3 screws holding the pocket clip)

What is the acceptable range of liner position on the blade's locking ramp? When I first got mine a little over a week ago, the liner engaged the locking ramp to the left of the halfway point on the ramp. Now it comes to rest just to the right of the halfway point. I am not concerned unless the liner's locking position continues to travel. Should I be concerned?

Also, I wonder whether my method of opening the knife will cause undue wear. While grasping the handle between my palm and fingers, I put the tip of my thumb in the hole and "flick" the blade open with a quick outward push. The blade SNAPS! positively into its locked position. I don't use any wrist motion to "sling" the blade out from the handle.
 
Ptn - Good question and often not understood.

The beauty of a linerlock is that lockup is the same from one end of the ramp to the other. If it is made right. the ramp simply permits a "self adjustment" for wear of the liner. As we continue to refine and improve the lock, we learn more and more.

The only realy problem occurs when there is no adjustment left and vertical play develops. We are finding that this is more a problem of the "stop pin" than liner wear. The pin has to be hard enough to withstand the "pounding" of rapid opening. We are still learning how hard that pin must be.

Our USA made linerlocks also have an adjustment in the pivot that affects this. Soon, our Seki made linerlocks will also employ the Spyderco eccentric Pivot as well.

Your opening method is fine. That is what the knife was designed to be able to do.

sal
 
Thanks for thequick reply, Sal.

If I understand you, there is nothing to be concerned about with the present locking relationship between liner and ramp. As long as more room remains for self adjustment over time, don't worry about it. When the liner rests near the far right edge (top of the ramp), I should send it back so the (eccentric?) pivot can be adjusted to move liner's locking position back over towrds the "bottom" of the ramp. Did I get it right?
ptn
 
So is there an optimal point where the liner should rest in the open position? I always assumed it was halfway for some reason but from what Sal is saying, as long as it locks, it's fine. Just wondering if there's a BEST position.

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ET

 
ET - When you don't have an adjustable pivot, the optimum position is at the beginning of the ramp because it leaves the most room for wear.

sal
 
I have the C15 and C19 Terzuola Clipits, neither of which have adjustable pivots. When they were new, the ramp was rough and the liner stayed far to the left and was very hard to release, but they settled in and the liners remain somewhat to the left of center to this day after much hard use. The C15 was from the first run, aluminum scales, numbered, and combo-blade. Love that knife, it was only surpassed by the Military and the StarMate.

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Walk in the Light,
Hugh


 
Sal,
Soon, our Seki made linerlocks will also employ the Spyderco eccentric Pivot as well.
Click to expand...
Will the Chinese Folder have the eccentric pivot? Please, pretty please
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.

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Take care,
Clay

Don't worry that the world might end tomorrow....in Australia it's tomorrow already.

 
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Thanks Sal, this knife just keeps getting better and better. I'm not even going to ask when you think they might be available, I'm enjoying the anticipation way too much
smile.gif
.

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Take care,
Clay

Don't worry that the world might end tomorrow....in Australia it's tomorrow already.

 
So, theoretically, these locks should last say....."forever"?
Mine is fine, locks up to the left of center and I have noticed no appreciable wear on the liner.
I sure would like the old style finger choil though, oh well.
Thanks for the info Sal and Vince.

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The greatest thought that has ever entered my mind is that one day I will have to stand before a Holy God and give an account of my life.
*Daniel Webster

Rev 20:12

 
....still watching the contact point of liner and blade ramp...has it moved to the right a little more??? No worries...it's a tweekable Spyderco.

I've finally gotten some use out of this knife recently. During this beautiful fall weather here in Ohio.....doing some last of the season mowing along the treelines and in amongst them on the grassy pathes, I draw my trusty Military (serrated) and clear the ends of branches from my path so they don't whip my face and body. Occassionally, I dismount from my steed (John Deere) and rescue a tree from the wild grape vine (tough cutting). This knife performs just as I had hoped.

I guess I've left the theme of this thread so I'll go even further....

What is the Chinese Folder?

ptn

[This message has been edited by ptn (edited 30 October 1999).]
 
Ah, my favourite topic
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. The Chinese Folder is a wonderful Bob Lum design which Spyderco is producing as a collaboration. James Mattis posted some scans of the protoypes after the last Blade Show. IIRC the middle size is the one going into production (approx. 3 1/8" blade, 4 3/8" closed). Sal has said that it's going to have dark green Almite scales, possibly with some gold leaf...drool
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. If I seem obsessed by this knife...I am, I've been lusting after one since the prototypes were first shown at Blade '98.

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Take care,
Clay

Don't worry that the world might end tomorrow....in Australia it's tomorrow already.

 
Scarman,
I too like the older style figer coil grooves better. There is slightly less material there but I took a Dremel to mine and added my own. It looks almost the same as my first Military which has them. Just a thought!



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~Keith~
"War to the knife and knife to the hilt"

 
Clay Kesting,
The scans of the Bob Lum Knives you directed me to remind me of knives I bought from company in Taiwan about 20 years ago. A nice family in the knife business for the last 400 years, if I recall. They made "shavers" for the Ming Dynasty royal house...or so they told me. The company name was Shih Lin Ming Dao (Shih Lin Famous Knives). Good locally backed warranty, free sharpening, Water Buffalo horn handles, soft steel, no hole in the blade. I bought a bunch of them for gifts...various sizes, from Ladybug to Military...only got one or two left.

ptn
 
ptn

That's interesting. I understood that Bob Lum had based the design on a traditional utility pattern and your expeience seems to confirm it. I first saw the custom version on the Arizona Custom Knives web page last year and it was love at first sight
smile.gif
.

------------------
Take care,
Clay

Don't worry that the world might end tomorrow....in Australia it's tomorrow already.

 
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