The Toilet Paper Test .. Failed Knives

Now tell me if this isn't weird?

Just tried my 3 bld. Remington "Green Over Yellow" Stockman with 1095 carbon blades which are razor sharp, punctured the paper very easily, but would not cut down the paper cleanly, tore the heck out of the paper instead. Guess this goes down as a failed knife for this test. NOW, a co-worker of mine just took this test and he used his Victorinox Swiss Champ, it passed with flying colors. Go figure!

Mark

 
Mark, this is just a guess but, it may be the Nut behind the Bolster?
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Must be the nut cause I tried it witrh a knife that was so sharp you couldn't feel it cut the hairs and it didn't work. Maybe I'm doing it wrong. Oh well!
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Always think of your fellow knife makers as partners in the search for the perfect blade, not as people trying to compete with you and your work!
 
Just jab the blade into the free hanging toilet paper and slice downward through the paper all in one fast motion. 1 of 3 things should happen:

1. Blade will penetrate and slice cleanly all the way down, (PASSED)

2. Blade will penetrate but tear the paper when trying to slice down, (failed)

3. or Blade will not do anything but push the toilet paper away from the blade. (BIG FAIL)!

I only allow three trys' at it, strike 3 and you are out! FAILS.

 
One addition to the test protocol. Be sure and not twist or laterally stress the blade, as this may break it, and would be your fault.
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Walt
 
Can we use European toilet paper? If so, my hatchet will pass.
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It's always darkest before the dawn. So if you plan to steal your neighbor's newspaper, that's the time to do it.
 
The Commander failed???
I just tried it with mine and it passed????
Yours might be used some or something
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What do you need a knife that sharp? I tryed my new Boker ceramic and it failed, but is still can filet paper. It would seem that if you put such fine edge on the knife you will lose it vary fast.
 
Vlad :

if you put such fine edge on the knife you will lose it vary fast.
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The finer the finish the more durable the edge. All a coarse finish does is leave large teeth that will distort easily and a very rough bevel that will increase the probability of fracture.

Mark, these knives that are being tested are they all "out of the box" blades or have they been used/sharpened?

One addition to Walt's comment, unless the grinds are perfectly even and your stab perfectly perpendicular, you will get lateral forces on the blade during the stab because of a variance in air pressure across it. These forces will increase with greater velocity but will decrease as you approach sea level.

-Cliff


[This message has been edited by Cliff Stamp (edited 03-28-2000).]
 
Cliff ...

All the knives I used that passed and failed are used knives. All have razor sharp edges, some have been sharpened and some still don't need sharpened. But, all did and still do shave the hair off my arm!

Mark
 
Cliff; you said:

One addition to Walt's comment, unless the grinds are perfectly even and your stab perfectly perpendicular, you will get lateral forces on the blade during the stab because of a variance in air pressure across it. These forces will increase with greater velocity but will decrease as you approach sea level.
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I believe you meant to say that the lateral force (caused by the airfoil effect) will INCREASE as you approach sea level. This, is, of course, due to the fact that the air is more dense. Unless, of course, you are coming up from below sea level, in which case the force would decrease as you approached sea level.

Hoping that this is correct, Walt

PS: I KNOW that you are joking around! WW
 
Walt :

I believe you meant to say that the lateral force (caused by the airfoil effect) will INCREASE as you approach sea level. This, is, of course, due to the fact that the air is more dense.
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This is absolutely correct Walt, however as the air gets more dense it also gets more Oxygen rich, meaning that your stroke will be more controlled. So even though the air is more dense (slightly increasing the pressure), this will be offset by your greater control due to the exact same aspect (greatly reducing the perssure).

I must clarify though that I have not verified this through experimention but the principles are sound.

-Cliff
 
Geez guys, don't forget to include the airflow effects on the blade as your stroke approaches the transonic region.
 
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