Strongest folding knife !

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FFK said:
The lateral FEA tests that have been done clamp the handle portion just behind the locking mechanism to end of handle. A force is then applied at a point on flat side of blade approximately 60% from pivot pin. To do an actual test it would be reversed , where the blade would be clamped at the 60% from pivot pin and weights hung from handle.
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How is there any difference in these two tests in the forces exerted on the pivot? I still think in a decently built knife the blade is more likely to snap than the pivot. Remember that a through pivot is buttressed on both sides by the liners/handle slabs. Once force is applied it should jam in place and the forces exerted will not be against anything fragile like the pivot screw head. The blade, being heat treated to be harder than the relatively more ductile handle will likely snap first.
 
I also fail to see the difference of stressing the blade or the handle to test the pivot area?
Your blade will most likely go first ether way!

So Mike, explain why there would be a different result?
 
Impressive knife & demo. When watching it the 2nd time, I am curious about the 600 lbs bearing on the lock. Hopefully someone can enlighten me on the actual load on the lock & pivot? Since the load point is at the wrong place for this claim of fame. Where correctly that point should be on the blade heel area.

espada.jpg

To be clear, I like to have good valid reference point for what possible in a folder (albeit quite large). Just physics, no politics...


pnsxyr said:
As others have said, let's see some tests! Test the knife side-by-side with a Tri-Ad lock, doing the exact same thing to each. If the knife proves itself to be able to take more than the Tri-Ad lock, then you've proven your claims and established your locking mechanism with much more credibility than text claims or pictures.


!!!!!!!!!!
[video=youtube;JgOYBu9tvgM]https://www.youtube.com/watch?v=JgOYBu9tvgM[/video]
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I don't see how lateral stress tests the lock.
If you want to test the lock, you have to try & force the blade closed.
 
bluntcut said:
Impressive knife & demo. When watching it the 2nd time, I am curious about the 600 lbs bearing on the lock. Hopefully someone can enlighten me on the actual load on the lock & pivot? Since the load point is at the wrong place for this claim of fame. Where correctly that point should be on the blade heel area.

View attachment 447126

To be clear, I like to have good valid reference point for what possible in a folder (albeit quite large). Just physics, no politics...
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If you look carefully at that picture, the blade is clamped properly. The heel of the blade is resting on the plate and the bolster is not contacting it. Reflection makes it look otherwise at first glance.

8836D974-C7E1-4912-9F98-87FB6655EDE9_zpslcniyh25.png
 
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You're right - Thanks, watched the 3rd time confirmed so. My eyes fooled me :o
DrFish said:
If you look carefully at that picture, the blade is clamped properly. The heel of the blade is resting on the plate and the bolster is not contacting it. Reflection makes it look otherwise at first glance.
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mtangent said:
I don't see how lateral stress tests the lock.
If you want to test the lock, you have to try & force the blade closed.
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I watched a video on youtube some time ago (unable to locate it now) that compared the strength of fixed blade knives to folders. The fellow pounded the knives into a log, if memory serves, tip first, and then took a 2X4 to the handles of the knives. Of course the fixed blades survived this better. However, I remember when the dude smacked a Zero Tolerance 0300 that after two or at most three smacks hitting the knife on the flat side of the handle the knife came apart sideways. The blade was fine, but the knife broke open at the lock. If I locate the video, I'll post it.
 
In a computer simulation you can apply force at any location. In real life weight or force has to be physically attached/applied. That's the difference
 
With the FFK,the steel handle and handle material(G10,FRN) are up against each other(in my opinion) make it stronger than traditional, G10/liner hollow slot G10/liner arrangement.
 
FFK said:
With the FFK,the steel handle and handle material(G10,FRN) are up against each other(in my opinion) make it stronger than traditional, G10/liner hollow slot G10/liner arrangement.
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You seem to know little to nothing about production knives. Do you actually own any knives aside from your numerous prototypes?

Edit: I'm not trying to be a jerk, this is a legitimate question.
 
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FFK said:
Cypress, yes I own a few folding knives
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My honest opinion is that you should maintain radio silence until you have stress test videos. The more you talk, the less interested anyone seems to be.

This statement:

FFK said:
With the FFK,the steel handle and handle material(G10,FRN) are up against each other(in my opinion) make it stronger than traditional, G10/liner hollow slot G10/liner arrangement.
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is just silly.

People ask you questions about your design, and rather than answering, you decide to tell us another "selling point" that has very little to do with favorable attributes.
 
FFK said:
In a computer simulation you can apply force at any location. In real life weight or force has to be physically attached/applied. That's the difference
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Mike, The question was,
What is the difference of stressing the blade or the handle to test pivot strength in real life testing?
Not Computer Vs real life.

Which is what I've been asking and suggesting to you! Real life tests of your full size actual knife. Not a pile of numbers from another computer simulation or you telling us which is best.

Am I communicating with one or more people? I thought I was communicating with one gentleman named Mike?
Please advise?
 
Laurence,
I see your point.... so a real life lateral strength test would involve clamping the blade at some point ......60% from pivot pin and pulling down on remaining handle just behind locking mechanism.

Mike
 
Man oh man. While I agree that the OP has a few real world tests to do to back up the claims, and yes some things sound a little gimmicky, I cant believe a lot of the responses! The guy invented something, and whether tough or gimmicky are to be determined, gets mostly flamed for it???
Makes me really hesitant on the off chance that I ever design something different to post it.
 
sc_bane said:
Man oh man. While I agree that the OP has a few real world tests to do to back up the claims, and yes some things sound a little gimmicky, I cant believe a lot of the responses! The guy invented something, and whether tough or gimmicky are to be determined, gets mostly flamed for it???
Makes me really hesitant on the off chance that I ever design something different to post it.
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Yes, that's probably a wise decision, that is to hold off posting anything about it until it's basically ready, good to go...
 
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