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#161276 - 06/11/17 04:50 AM Spyderco Bill Moran and kydex sheath mod.
desert.snake Offline
Knife Enthusiast

Registered: 09/25/13
Posts: 1107
Loc: the other side of the earth
Recently got this knife, slightly used.
Very comfortable grip and cuts well.
But there was a problem with keeping the sharpness.
I sharpen the knife very sharp. I went with him for 1 day,
used for all purposes.
In the evening I found that the knife was completely stupid.
It's strange, steel hardened hard. I sharpened it again,
sheathed it, staggered him, took it out - he is stupid again.
It seems the problem is in the sheath. I washed them with soap
and washed under the pressure of water, it does not help.
I guess some kind of fine abrasive is stuck in the cracks,
between the halves of the scabbard, and pressed into the kydex
(or what kind of plastic spyderco is used?).
The shell is fastened with rivets, it can not be disassembled
for cleaning. If I cut rivets and put the screws, then can clean.
But somewhere in the campaign or fishing, I may not have the time
or conditions to clean the scabbard from the dirt and keep
the sharpness of the knife.
So I thought for a while and decided that I needed a sheath
in which the cutting edge of the knife did not touch anything,
as in folding knives smile

Maybe someone has already done this, but I did not see it on sale.

The meaning is this, before you start forming the sheath from kydex,
you have to cover the cutting edge with lead.

That is, we take an abstract knife.
We take a rod of soft lead, 1 cm in diameter.
We along cut the rod down to half.
Further, as on a stained-glass window, we put on lead
on the cutting edge and tap it with a light hammer to sit tightly.
Then we form a sheath (as example here www.youtube.com/watch?v=S7n-TY-HiAc).
As a result, we get a sheath in which no abrasive dirt
will damage the cutting edge (If it's not too much, of course grin).

There is still possible the problem of structural rigidity.
To do this, you can overtop the main roller on the cutting edge,
add cone rollers. Then the knife will not spread apart
the muzzle mud and will not be blunted again.


I think you can even try to do something similar and inside
the leather sheath, using an aluminum tire or a wooden structure


I think I'll send this letter to Dozier, let him think,
because a similar problem I have encountered on his knives
somehow long ago with the kydex sheath


















add small lead cone rollers


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#161278 - 06/11/17 09:32 AM Re: Spyderco Bill Moran and kydex sheath mod. [Re: desert.snake]
Lofty Offline
Knife Enthusiast

Registered: 02/06/16
Posts: 656
I never have much trouble with leather dulling knives unless sheath too tight and edge cutting the welt.

Spyderco uses Boltaron now, and it supposedly not as bad as for dulling. But any flat grind plus plastic sheath pinched shut at edge means the edge drags on plastic.

Knives with thicker primary grind at edging and pronounced secondary giving shoulders which keep sharpened edge off plastic will help a lot.

Plastic is quite bad as to having grit embed in the surface and no cure for that.

And entire point of the plastic sheaths are ease of manufacture, cheap, and proof against environment.

Doubt you will see anyone do anything to cut into profit margins, not even added a (wonder of wonders, what a novel idea) welt to a sheath edge, not even of plastic.


Edited by Lofty (06/11/17 01:28 PM)
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#161308 - 06/12/17 12:57 AM Re: Spyderco Bill Moran and kydex sheath mod. [Re: Lofty]
desert.snake Offline
Knife Enthusiast

Registered: 09/25/13
Posts: 1107
Loc: the other side of the earth
Good idea, I'll try to do it, thanks smile

The same construction, i.e. Extension at the cutting edge,
can do on the wooden liners, as you showed the leukko,
or WWII homemade from aluminum, quite easily decomposes.





The problem of such pollution is very rare, if only you use a knife. If you give it to a camping trip to someone, especially a woman, then you can not clean the dirt out of the scabbard. Low culture used of handling tools. Therefore, I thought about ways how to compensate for this by technical means smile
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#161362 - 06/13/17 06:42 AM Re: Spyderco Bill Moran and kydex sheath mod. [Re: desert.snake]
Eric Offline
Knife Enthusiast

Registered: 11/18/15
Posts: 1668
Loc: Michigan
When these were originally released they came with a leather sheath. It appears Spyderco should have stuck with that idea.


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Edited by Eric (06/13/17 06:45 AM)
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#161373 - 06/13/17 11:41 AM Re: Spyderco Bill Moran and kydex sheath mod. [Re: Eric]
LarryWW1246 Offline
Knife Enthusiast

Registered: 03/20/06
Posts: 1728
I have one or two of the original Spyderco Moran release with the numbered blades and leather sheaths. They are nice to handle, compact and efficient, wicked sharp, but the leather sheath offers just one way to go on a belt.

We know that Kydex has certain advantages over leather, and I have Kydex sheaths for a couple of RMKs that simply offer greater versatility and reduced bulk.

The problem of the edge taking a hit in the Kydex sheaths and the solution mentioned by Desert Snake could be worked out for any Kydex-sheathed knife. Using Desert Snake's method the sheath maker might simply buy some lead sheet and cut it to go onto the edge of the knife while forming the sheath under heat and pressure. Otherwise, simply build up sufficient layers of masking tape on the edge of the knife to get the same result as the sheath is formed around it. You would not need much clearance inside the sheath to avoid damaging the working edge. Simple and practical solution.

By the way--my experience with Kydex sheath makers is mixed. There are methods that they "might" know and use to give proper clearances for all the surfaces of the blade that would otherwise rub on the plastic unnecessarily (marring the knife over time, and making it more difficult to draw it and re-sheath it), while at the same time assuring that it is not so loose as to rattle in the sheath or be prone to slipping out on its own.

At present, I don't know of a Kydex sheath maker that I could recommend (not that anyone here has asked!), but if any readers know of such a craftsman who will also turn their projects around in a reasonable time--we all could benefit.

Finally--a personal preference. Some of the Kydex sheaths are made with godawful bulky multi-position plastic devices for fastening to belts, armored vehicles, or whatever. A skilled Kydex sheath maker can talk with his customer and make a variety of thin fittings to be attached to the sheath giving the user several options for how they plan to carry the knife.

Larry


Edited by LarryWW1246 (06/13/17 11:45 AM)
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#161384 - 06/13/17 01:59 PM Re: Spyderco Bill Moran and kydex sheath mod. [Re: LarryWW1246]
desert.snake Offline
Knife Enthusiast

Registered: 09/25/13
Posts: 1107
Loc: the other side of the earth
Thank you guys! smile

More electrical tape, this is a great idea.
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