Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 67 users online :: 4 registered, 0 hidden and 63 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Knife Thread

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
Sponsored 
  • Author
    Message

Unread postAuthor: jakethebeast » Sun Apr 24, 2011 4:36 am

when you sharpen a knife the "curve" style, also known as convex grind. Conwex grind is faster to do, but you lost the ability to get the extreme sharpness. Its good when used in bowie style blade.

And the double edge, you know. First primary edge and then you make that small "cutting edge" , thats bad. Again, you lose the ability to extreme sharpness. So, i recommend scandigrind or flat grind every time, it takes more time but itll pay back.

But you dont need convex grind on a blade, that takes much stress. You can get better results whit scandi grind, but again, this has something to do with the blade material and heat treating prosess.

For example, we take 52100 ball bearing steel and normal low carbon steel. We laminate those "san mai" style, 52100 in the middle. When we do a differential heat treatment to it, and then tempering it to take maximum stress. There you have a blade, that flexes like a spring but still takes the extreme sharpness.
  • 0

User avatar
jakethebeast
Brigadier General
Brigadier General
 
Posts: 934
Joined: Sat Jul 03, 2010 4:20 pm
Location: Jakes cave
Country: Finland (fi)
Reputation: 11

Unread postAuthor: ilovefire » Sun Apr 24, 2011 4:58 am

ah ok, but to be honest im not really sure about anything you just said, will have to come back and look up some of the things you said but right now im gonna go back to making my snake cage, but yea when i do figure out what you just said i will have to do that to them, or something lol, cheers
  • 0

why make it if it dosent shoot?
User avatar
ilovefire
Colonel
Colonel
 
Posts: 511
Joined: Sat May 22, 2010 6:48 am
Reputation: 0

Unread postAuthor: LeMaudit » Sun Apr 24, 2011 7:03 am

ThornsofTime wrote:Anywho, a few of my creations for your consideration.

I like the one full of rivets! Always loved rivets, nuts and bolts... :-D
I never thought SteamPunk style was also popular in knives... any link to share for more?


jakethebeast wrote:made a video of me cutting paper

:shock: Impressive! Very!! I've never seen a blade cutting like that... except in movies :lol: A shame I don't have a workshop where I can set a furnace, I would love to learn tempering steel, and how make real size blades. But so far my tempering experiences were dipping hot steel of the proper red color into a can of grape seed oil :-D


ilovefire wrote:thought i would post a couple of my knives i just made

I like the Bowie style of your knives. I'm sure Jack is right for the problems related to this blade shape (I say that just in case, as I didn't understand all either :lol:) but still, it's a very nice work.
  • 0

User avatar
LeMaudit
Donating Member
Donating Member
 
Posts: 665
Joined: Thu Apr 16, 2009 2:48 pm
Reputation: 0

Unread postAuthor: jakethebeast » Sun Apr 24, 2011 7:08 am

LeMaudit, or if anybody who wants to make a knife but cant make the blade, im happy to sell you some blades in good prize :) . Like a Spudbrother (OR sister) prize :D

EDIT: Aa you want me to tell simpler ehy i dont like bowie style blades? okey.

For a knife thats made for chopping wood, it needs to be heavy, specially front heavy. you see a bowie blade. The front is much lighter than the back. then take finnish seax style skramasax. The end is forged thicker and wider to be heavyer. This kind of knife has much much more potential when chopping.

Hope you guys understant now
  • 0

Last edited by jakethebeast on Sun Apr 24, 2011 7:17 am, edited 1 time in total.
User avatar
jakethebeast
Brigadier General
Brigadier General
 
Posts: 934
Joined: Sat Jul 03, 2010 4:20 pm
Location: Jakes cave
Country: Finland (fi)
Reputation: 11

Unread postAuthor: LeMaudit » Sun Apr 24, 2011 7:17 am

Thanks for the offer!
You know, I might take this opportunity for an incoming project 8)

So many projects... :wink:
  • 0

User avatar
LeMaudit
Donating Member
Donating Member
 
Posts: 665
Joined: Thu Apr 16, 2009 2:48 pm
Reputation: 0

Unread postAuthor: jakethebeast » Sun Apr 24, 2011 7:19 am

haha im waiting for reguests! Sadly right now i have only the ability to heat treat max 15cm blade, hope to get the coalforge running soon. Then its damascus time :D :D
  • 0

User avatar
jakethebeast
Brigadier General
Brigadier General
 
Posts: 934
Joined: Sat Jul 03, 2010 4:20 pm
Location: Jakes cave
Country: Finland (fi)
Reputation: 11

Unread postAuthor: LeMaudit » Sun Apr 24, 2011 7:34 am

Damascus, I have a nice one I can share :-)

Image
  • 0

User avatar
LeMaudit
Donating Member
Donating Member
 
Posts: 665
Joined: Thu Apr 16, 2009 2:48 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: jakethebeast » Sun Apr 24, 2011 7:35 am

that looks.. cool. how many layers that one has?
  • 0

User avatar
jakethebeast
Brigadier General
Brigadier General
 
Posts: 934
Joined: Sat Jul 03, 2010 4:20 pm
Location: Jakes cave
Country: Finland (fi)
Reputation: 11

Unread postAuthor: jackssmirkingrevenge » Sun Apr 24, 2011 7:48 am

Might as well chuck this hypothetical design here :)
  • 0

Attachments
valvelessballisticknifeidea.GIF
valvelessballisticknifeidea.GIF (25.47 KiB) Viewed 670 times
User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: LeMaudit » Sun Apr 24, 2011 7:51 am

49 layers. It is a Herbertz knife I bought in France a long while ago. Blade length 6 inches. Overall 10 1/2".

[edit] Oh! A balistic spud! :lol:

[edit] You know... using a quick connect as a base... and Jack razor sharp custom blade, and a machined handle... we could have a niceeee project :D
  • 0

User avatar
LeMaudit
Donating Member
Donating Member
 
Posts: 665
Joined: Thu Apr 16, 2009 2:48 pm
Reputation: 0

Unread postAuthor: ilovefire » Sun Apr 24, 2011 9:39 am

well i found this and its helped me undersand what you were saying a bit better

http://www.britishblades.com/forums/sho ... -Explained

the sheathed blade i think is more scandi and the folding blade is convex, as i said before iv still got a bit more work to do on them, will probably try get a nice scandi grind on both of them and see if i can manage to at least make them cut paper, thanks for the help
  • 0

why make it if it dosent shoot?
User avatar
ilovefire
Colonel
Colonel
 
Posts: 511
Joined: Sat May 22, 2010 6:48 am
Reputation: 0

Unread postAuthor: inonickname » Sun Apr 24, 2011 10:03 am

I started making a miniature ballistics knife before. About 4" overall, with a concealed schrader. It would be fireable by undoing a small threaded pin with a knob on the end which locked the knife/piston in place. Never got around to finishing it up and sealing the valve in but I don't think the bore size the piston had would have propelled the fairly heavy knife and piston assembly very quickly. Would definitely go full size if I were to do it again.

Oh and Jack, do you hold onto the schrader and pull the sleeve back? :P I think a trigger and perhaps a sear latched onto a groove in the knife assembly would work well and would give the possibility of a safety.
  • 0

PimpAssasinG wrote:no im strong but you are a fat gay mother sucker that gets raped by black man for fun
User avatar
inonickname
Lieutenant General
Lieutenant General
 
Posts: 2606
Joined: Sun Dec 07, 2008 3:27 am
Reputation: 0

Unread postAuthor: jakethebeast » Sun Apr 24, 2011 10:27 am

actually, iw made a ballistick knife, its almost finished. Its just a spring version. just need to build the lock

Image

This one was made with very tight cutting angle to be strong. Actually, the blade is like 6mm thick. the construction is made from steel and aluminium for the handle.

49 layers


Well, i was meaning the traditional damascus, 10 000-30 000 layers :D
  • 0

User avatar
jakethebeast
Brigadier General
Brigadier General
 
Posts: 934
Joined: Sat Jul 03, 2010 4:20 pm
Location: Jakes cave
Country: Finland (fi)
Reputation: 11

Unread postAuthor: jackssmirkingrevenge » Sun Apr 24, 2011 10:41 am

inonickname wrote:Oh and Jack, do you hold onto the schrader and pull the sleeve back? :P I think a trigger and perhaps a sear latched onto a groove in the knife assembly would work well and would give the possibility of a safety.


You can hold the handle and pull back on the schrader ;) or if you're holding the handle and stab something...

Alternatively, you can shorten the sleeve to a collar and activate it with your thumb:
  • 0

Attachments
valvelessballisticknifeidea2.GIF
valvelessballisticknifeidea2.GIF (24.5 KiB) Viewed 638 times
User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: LeMaudit » Sun Apr 24, 2011 12:43 pm

ilovefire wrote:well i found this and its helped me undersand what you were saying a bit better


Nice link, thanks for sharing.


you can shorten the sleeve to a collar and activate it with your thumb


Yes I immediately thought about that when I said using a quick connect. But the other way around, exactly as a quick connect collar work. Having the collar close to the blade that you can activate by pulling with thumb and index. Pushing would do nothing, which would make it safe for stabbing too.
:D
  • 0

Attachments
pull.jpg
User avatar
LeMaudit
Donating Member
Donating Member
 
Posts: 665
Joined: Thu Apr 16, 2009 2:48 pm
Reputation: 0

PreviousNext

Return to Non-Spudgun Related Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'