Good Inclusive Bevel for CPM S30V Paramilitary 2

H

HoosierQ

Joined
Feb 9, 2010
Messages
2,327
I've got a new Para-2. LOVE IT. However, I was not real thrilled with the edge so I reprofiled it down to about 25 - 27 inclusive free-hand. Here's the question.

This thing is sort of my "hard use" folder. Now for me hard use is not too hard, I have big fixed blades and axes for serious hard use. I think I want to put a quick, tiny micro bevel on there with the Sharpmaker for ease of edge maintenance and I need to choose an angle. I trust that Spyrderco has hardened this CPM S30V blade to the published 60.

Should I go with 30 inclusive or 40? When I do it well, which thankfully is happening more frequently, I am happy with a 40...my Endura's got the same treatment and they're at 40. But with the superior performance of 30V, I am tempted to with 30 degrees.

Any recommendations?
 
do some experimenting and find out what works best for what you are cutting. you can always change the angle when you sharpen the knife again.
 
I went with 36 inclusive on my S30V Para2. I found that this is a really good geometry for slicing ability and toughness. I used this same geometry in my rope test, and it did extremely well.

If it can cut all this rope without having damage at the end, then it's pretty tough.

[video=youtube;-eDTzHuBmXc]http://www.youtube.com/watch?v=-eDTzHuBmXc[/video]
 
Well I took you all's advice...as close as I could. I went with 40 and am very pleased. Somebody should invent a "Sharpmaker" like tool with a geared hinge in the middle so that the angle could be dialed and locked from between 25 and 50 or something like that. Anyway, given two 36 degree recommendations (and having only 40 available) I went with 40.

I can freehand to just about any angle but what I like to do is put a very acute seconday bevel and then a less acute micro bevel. I like the Sharpmaker for that for repeatability at touch up time.

Thanks folks.
 
Ben Dover said:
My best results with S30V have come with 30 inclusive. (15 per side.)
Click to expand...

+1. I've had very good luck with 30* inclusive. I also tried 24* inclusive with a 30* microbevel. Both worked very well, didn't get chippy. I lean toward the 24 with 30* microbevel because I like it thinner at the edge.
 
I've zero-grind-convexed mine. At first I did it too steep, so it chipped, but after backing off a bit it cuts like a scalpel without any issues. I'm happy if it doesn't chip or roll after at least 10 minutes of carving birch-, pine- or oakwood. Can't tell you exactly what angle it is at, but I would estimate that it's somewhere like 20° inclusive and the actual blade is way thinner than before. It cuts much better than my standard Mora knives, but it is also much thinner and more fragile. I wanted a seriously sharp knife which could still withstand the stresses of woodcarving, but since it is a folder, I would never twist or pry with it, so the lack of strength should not be an issue, since I'll only use it for cutting tasks where a sharp blade is required without the use of force.

para2convex.jpg


The black area on the edge from the tip to belly is just a reflection.
 
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