NASA Bushcraft; thoughts on design

The plot thickens...

I'm quite interested in how this one will turn out.

Is M390 tough enough? Corrosion resistant enough?
 
I have a couple of customs from Andy Roy (Fiddleback forge) in S35VN and they have performed very well (thin convex ground). Sounds like a plan Chris
 
Chris, thanks for the updates and thoughts on your project. I get the impression you are kind of coming out of your comfort zone on this one. Sal seems to have made good being a catalyst for that sort of thing with some pretty impressive results over the years. :) Every generation needs some people like that.

I'm confident it'll be a performer first and foremost. If things don't get the days work done then they are mere pretty baubles and get lost in history.

Regards,

Joe
 
Vanadis 4 extra also keeps a great edge but is at the same time very tough.

Here a "review" of a vanadis knife of 61 HRC

Vanadis 4E is a variation and kind of analogue of CPM M4, and I think the second is better choice, not only because there is tungsten, but the shipping costs for Vanadis 4E will be much more than the Crucible's CPM M4. I would like the buschcrafter be in CPM M4. If you decide the knife to be in stainless steel, my opinion is that M390 or CTS-204p is the best, but 154cm is not a bad choice too. And please don't make it harder than 60-61, its a outdoor kinfe :) For the same reason I don't prefer CPM S90V.
 
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I think M390 or CTS-204P would be a great choice for this knife and its intended uses. Just my $0.02.
 
Any thoughts about Bohler's Vanax... as in naming - you can go geological, like "the Obsidian, the Basalt, or even Tuff." I just googled rocks.
 
Vanadis 4E is a variation and kind of analogue of CPM M4, and I think the second is better choice, not only because there is tungsten, but the shipping costs for Vanadis 4E will be much more than the Crucible's CPM M4. I would like the buschcrafter be in CPM M4. If you decide the knife to be in stainless steel, my opinion is that M390 or CTS-204p is the best, but 154cm is not a bad choice too. And please don't make it harder than 60-61, its a outdoor kinfe :) For the same reason I don't prefer CPM S90V.

Crucible made a very close equivalent CPM 4V ( But Uddeholm has third generation technology)
Vanadis 4E is much tougher than CPM M4
 
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If two foundries (can I still call them that with PM technology?) make equivalent steel with equivalent performance, I don't much care about their "generational" marketing strategy.
 
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It's my opinion that we knife users will see more difference from different heat treat temps/times/tempers than any real difference in technology. Nitrogen pressure and different nozzles may theoretically give different results but I don't think it's going to effect performance at the production level greatly.

Carpenter rep/metallurgist stated that that they got as good as or better results than a european manufacturer who claims 3rd generation PM process. Carpenter may be 2nd? According to the guy from Carpenter the differences weren't so easy to label. The newer CTS steels certainly seem to not take a back seat to others of the same composition. Altering the composition does bring a difference though, such as K390 vs. standard A11 class steel. I sure have no problems using CPM steels with so called 1st generation process. How much gain is real at this level isn't really established anywhere I've seen with info I have access too.
 
And please don't make it harder than 60-61, its a outdoor kinfe :) For the same reason I don't prefer CPM S90V.

I agree. Harder and better edge holding really aren't the best attributes for an outdoors knife. Damage occurs more frequently and you want bends not chips. Geometry is really the first thing to consider IMO. I wouldn't mind seeing a Military type edge that's long, thin and curvy with a leaf shaped spine.
 
Names: Thinking in terms of similar bushcraft skills but updated materials and wider scope of use I propose
SolarCraft, you could even work a sun emblem into with the hole; maybe GlobalCraft. Maybe the "Latitude" since it gives you a greater range of uses. Maybe something harkening back to our early days, the "Petroglyph". OK, enough of that.
For steel, I'm partial to a stainless, but only one which manages (in additional to its stainlessness) to successfully employ the unholy triumvirate of 1)holding a fine edge, 2) being fairly easy to re-sharpen and 3) fairly tough (enough for reasonable batoning). I've no idea if such an beast really exists that balances those qualities so the true experts in the field will have to address this area. I can say I've had fantastic luck with my zdp-189 Spyderco folder holding a great edge and being easy to sharpen but I've never batoned with one and don't plan to do so. I've heard that a damascus of CPM154/3V works well but that would be expensive as heck and wouldn't provide the degree of manufacturing control that is likely needed depending on the volume. I've enjoyed working with an M390 knife I have but I still haven't run it through it's paces enough to know for sure if it rises to the level of the unholy triumvirate. A long convex or FFG is a very user friendly grind in my book. I despise saber grinds though unless they are quite high. My most used fixed blade in camping and bushcraft is actually a very simple wide bladed Brian Breeden knife in O1 that is so thin that its grind is a cross between a scandi-grind and a long convex. It's done everything better than just about anything else I've owned and it's lightweight too. It's only downside is that it rusts very easily. Something a tiny bit thicker for extra durability and stainless would be about a perfect updated bushcraft knife in my book. Its not a pretty knife but I can post a pic if you want. These are my brief thoughts on this subject which is very near and dear to my heart.
 
Spacecraft is a great name. :)

My vote goes for 3v (pretty rust resistant - will be an excellent upgrade to O1 used in the original knife) or M390 for stainless. The idea of this project the way I understand it is that the knife is made using premium, "cutting edge" materials that would allow it to be great slicer while being tough enough for most tasks.
 
There's rumors that Spyderco is doing a run of 4V Mules and I've heard it said (read on another forum) that 4V has greater edge retention than 3V with a bit less toughness, while still being tougher than most. I'd like to see something like that for an all-around blade. It's not stainless but I've had good luck with 3V and D2 staying rust free.
 
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