Short survival machete ****Large pics****

What do have against curves! those 90 degree edges will dig into your hand and the straight handles will not be comfortable. folding saws are actually really nice tools, they are light, and cheap and work really well. Saws in knives are never a good idea. nice work with the CAD though that's really nice.

Also if you will have to have some abrasive machining, if nothing else the edge will have to be abrasively sharpened, so the straight edges and other design features may be unnecessary, or nonfunctional.
 
On whether or not my saw design is functional I direct you towards SOG
sam_0152.jpg

*not my pic*

The handle is fully rounded:
machete%20handle.jpg


After looking at the center of mass of the machete I decided to shorten it a bit.
center%20of%20mass.png

The purple point is the center of mass

blade%20and%20tang%202.JPG

Also a steeper angle on the chisels.

On a bit of a side note, yes my software has limitation and all my work so far is purely theoretical but every modern manufactured good (from McDonalds toys to jet fighters) is born in CAD. Do not for a moment underestimate it.

And thanks for yalls comments and suggestions keep them coming.

-Frank the Tank
 
Keep rocking it, it is looking better and better!

As an added function it could be used a cricket bat! but seriously, it looks pretty cool.
 
Frank Lima said:
On whether or not my saw design is functional I direct you towards SOG
sam_0152.jpg
Click to expand...

Just a heads up, the teeth on those are at a much Higher/Lower angle to the "side" of the saw, then yours are. I hope that makes sense.

With your blade standing upright on the pommel teeth facing you...Measure the hight first tooth on the right and then the first tooth on the left. Looks to be around .120" difference. That would make around a 26.5 degree angle. The SOG looks more like 40+ degrees.
 
Anyone can jump in and fix these specs but from the 3 loveless books I have this is what I put together.

Overall length 8 1/2" , blade 4"
thickness before grinding bevels and tang: .190"
Fastener holes: .166"
Thong tube hole: .257"
Thickness at Ricasso: .156"
(5/32")


Images:







There are countless more photo's hope this helps
 
I can't figure out how to copy and paste images from this book , maybe it's my adobe reader program or just cause it's pdf but ya there are tonnes of examples in this book and it's an interesting read too.
 
So if you are in survival situation and you need to gut a fish you caught, clean a bunny you snared, or need to create a bow drill socket to start a fire...

How are you going to do this without any point ?



This thing is looking like a Razel with a sawback and a less comfortable handle.



I feel that you maybe designing based on your production abilities instead of design utility.


Sawbacks have very little utility. Especially on a 1/4 inch blade.

Think of all thet extra effort it takes to make a cut that wide.
Especially when you could chop a pole in just a few whacks.

How about designing a GOOD takedown-folding saw that takes premade Swede saw blades.
one that has all parts and pins captured so it's impossible to lose when you drop them in the snow
 
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Input the CAD design into a water or laser jet cutter , sharpen the edges and then go chop F U into a tree/ branches and post a pic here.

On another note , from my limited exposure to knife makers hundreds if not thousands of years went into the shapes and designs used today . I think a lot of people feel the tried and true are that way for a reason , because they work . I think the designs are cool and your making it for yourself not anyone else so keep that in mind.
 
Frank Lima said:
On whether or not my saw design is functional I direct you towards SOG
Click to expand...

And I humbly invite you to actually saw something with it. I certainly don't underestimate CAD, nor do I casually disregard the considered opinions of people who do this sort of thing for a living, and are trying to prevent you from wasting a great deal of time and resources.
 
james terrio said:
And I humbly invite you to actually saw something with it. I certainly don't underestimate CAD, nor do I casually disregard the considered opinions of people who do this sort of thing for a living, and are trying to prevent you from wasting a great deal of time and resources.
Click to expand...
Amen brother James. Designing parts to interface with other precision components, moving and reacting in narrowly defined ways, is different than designing for human use in a survival situation.

Bottom line Frank: design it as you see fit and then make it and test it. Be thorough, be open minded, be honest with yourself. Compare to benchmarks set by other quality tools (and makers) and adjust as needed.

Signing off 'till I see working prototype ;-)
Best
Steve
 
Im pretty sure the angled tip will be thicker and need to be grinded like a third cutting surface which will give u another "line" in your drawing. I applaud you for what you are trying to accomplish but somethimgs software cant show u that experience can. Keep up the work tho!
 
Frank Lima said:
I don't really know if there is any increased functionality with a rounded blade but i do know that making a rounded edge on a mill is more work (and skill than I have) than a square edge.

-Frank the Tank
Click to expand...

Frank,

I've been chewing over your answer and I'm now curious about something. Are you intending to make one of these for yourself, or are you thinking about making them for sale to others?

I ask because if it's a one-off, the limitations of the mill should be relevant only to the initial blank that is produced. After that, the hand and machine work used to finish the piece would allow you to overcome the limitations of the software and the mill.

I suppose at the root of the question, are you planning on doing any hand finishing?

- Greg
 
I am impressed, this idea has grown legs and walked over the internet. I have not seen a collaborative effort like this before on the forum. Sure there are many issues to solve in the construction of this beast, but, the development of a tool with aid from makers all over the country is something to behold. Just a to toss in some ideas, I had an axe water jet cut and to reduce the finishing I use precision ground A2 and had Paul Bos do the heat treat, come out really clean, really cuts back on the finish work.
 
Patrickknives said:
I am impressed, this idea has grown legs and walked over the internet. I have not seen a collaborative effort like this before on the forum. Sure there are many issues to solve in the construction of this beast, but, the development of a tool with aid from makers all over the country is something to behold. .../snip....
Click to expand...

I think it has weathered the storm and gained validity due to the fact that Frank Lima is sincere in the quest to make the best knife he can, his way, while still respecting and accepting criticism/help from others. What an awesome/powerful attitude to have! (FILL OUT YOUR PROFILE, BUD:thumbup:) I still hate the design from my own "wilderness survival viewpoint" but will follow this thread with respect to all the "brainpower" that is flowing, here. Who knows? I may be a convert in the end;)
Rick
 
Frank, I love what you are doing here. I love the over the top, overbuilt idea behind this. As it happens I have dabbled in Solidworks a little myself, and made some bladed instrument designs that I am sure are far from "practical" but nevertheless capture my fancy. Here is an example:

Beskad.gif


How do you feel about further complicating things through the inclusion of additional parts? Or is the goal to keep it as simple as possible?
 
mattbrook said:
Nice idea Daniel,

I didnt know anyone over your neck of the woods new about the greatest game in the world!!!
Click to expand...

I haven't always been out here on the mountain. :D I used to like to ask people to explain the rules, it is always the best question!

I have played cricket with kids in Grenada, talk about not having a single clue about what is going on!

Oh yeah Knives... back on topic!
 
First let me say I think the idea is neat. But isn't it really just a woodman's pal tool just beef'd up some. We had these in the aircraft survival kits when I was a crewchief on UH-1 helicopters in the army. The orignal is more than heavy enough I thought to do it's job. here's a link to the tool I'm thinking of. The one in the survival kit had a hand guard but made by the same people. donald

http://www.woodmanspal.com/
 
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