Design feedback on a general purpose survival. Now WIP. Done! :)
- Thread starter peppen108
- Start date
Thanks for the input. Made me think. The state of the knife right now is that it has a scandi grind and the "edge" is about 0,5mm thick. The angle is 22,5 deg. The goal i set was a zero scandi at 22,5 deg. I don't think i got the love or skills to bring the bevel up now that its hardened. What i can do if it's feels to chubby is turn it in to a convex grind.
- Joined
- Jan 6, 2005
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- 9,680
It will take more to properly convex it that to do a scandi. Didn't you make a jig?
A file jig. But i can slap sandpaper on to a stick an use it. I'm going to try it like it is first.
The problem right now is that even my coarsest stones is making this project a time gulper. It seems that they work fine first and den gets polished and starts to polish the steel. This is what the "edge" looks like now.
Far to fine scratches given i got 0,3mm to go.
The problem right now is that even my coarsest stones is making this project a time gulper. It seems that they work fine first and den gets polished and starts to polish the steel. This is what the "edge" looks like now.
Far to fine scratches given i got 0,3mm to go.
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- Feb 18, 2005
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- 321
agree with Rick, especially when it looks like your index finger is that close to the cutting edge. The prototype will tell you which way to go (either forward with it or forward to the hospital 
).
).I really appreciate the input.
If it don't get this down I will re build the jig. It was built on my workbench so I take it apart when doing other stuff. But I think a zero scandi at 22,5 deg might not be to bad on this knife. A higher bevel looks nicer and slices nicer. But this is primely for batoning and carving. What would be the purpose of changing the bevel?
Went to paper at 80 grit and it looks alright and I took of 0,05 (from 0,30) in 20 min.
If it don't get this down I will re build the jig. It was built on my workbench so I take it apart when doing other stuff. But I think a zero scandi at 22,5 deg might not be to bad on this knife. A higher bevel looks nicer and slices nicer. But this is primely for batoning and carving. What would be the purpose of changing the bevel?
Went to paper at 80 grit and it looks alright and I took of 0,05 (from 0,30) in 20 min.
This is the page that i used to calculate the geometry. If there are guys who does not master the trigonometry i can make a small "walk through".
http://www.csgnetwork.com/righttricalc.html
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- Jul 6, 2012
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- 136
You're an animal!! looking good man your dedication shows in your finished products.
The madness ends. I set the goal that the edge should be as fine as a high end Sheffield made scalpel.
The picture below is my blade. The last step was to run it three times over glass. Edge first.
The picture below is a brand new Sheffield scalpel.
I say mission accomplished. I push cuts through thin paper and you can dry shave the beard (all thou a shaving cream makes it more pleasant) . Time to mask it. And start thinking about the handle.
The picture below is my blade. The last step was to run it three times over glass. Edge first.
The picture below is a brand new Sheffield scalpel.
I say mission accomplished. I push cuts through thin paper and you can dry shave the beard (all thou a shaving cream makes it more pleasant
) . Time to mask it. And start thinking about the handle.
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- Joined
- Oct 13, 2011
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- 1,774
I love it when a plan comes together... I couldn't stop reading this thread once i started. nice transformation as the pages went on mister Peppen, i am interested in seeing the finished product and hearing your feedback on it.
P.S. i would have picked "A" and left the integral guard, thats just me.
P.S. i would have picked "A" and left the integral guard, thats just me.
Thanks mate.
It's time to make the finale decisions.
So the handle will be in ivory white. The spacer will be a two tone paper micarta black and white.
I picked up a selection of 3mm rods at a RC store for radio controlled planes an such flying devices.
What do you think?
The choices
-carbon-steel rod
-hollow brass rod
-carbon-fiber rod
-glass-fiber rod
It's time to make the finale decisions.
So the handle will be in ivory white. The spacer will be a two tone paper micarta black and white.
I picked up a selection of 3mm rods at a RC store for radio controlled planes an such flying devices.
What do you think?
The choices
-carbon-steel rod
-hollow brass rod
-carbon-fiber rod
-glass-fiber rod
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