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Custom Folding Chopper

thanks Anthony:). Your post really got me thinking that I should start doing some research. Maybe I'll invent something new based on what I've learned of existing locks...;)

I'll bet that both of those locks are designed to resist closing forces, I've seen the CS test with the vice. Pretty impressive. I've seen that ball lock thing, but only once. It's pretty cool too. Very innovative.

However, I think that what I'm looking for is a folder which is strong in the opposite direction...

Maybe a locking liner is enough. An important attribute would be for the lock disengagement mechanism to be WAY out of the way. A locking liner would allow a largely symmetrical handle and comfort for my poor beat up hands.

I wonder how many different kinds of locking mechanisms are out there?

If the backspacer were robust enough and supported in the right places it might provide the kind of support needed for impacts. The material would have to be really hard I would think, so no carbon fiber or mokume. I'd even go so far as to use the exact same material the blade was made from.

Are stop pins usually harder or are they usually softer than the blade tang?

Would a hidden stop pin, plus a backspacer as blade stop get us there?

I forgot about this knife. It's pretty cool. (not my photo)

hossom.jpg
 
dang, a hidden stop pin AND backspacer acting as a stop!:D:thumbup:
Heavy duty Judy!
 
hmmm. $$$? Not there yet. I'd like to learn how to design a locking knife and maybe even make it myself. One day when I have time:p
 
Lorien said:
However, I think that what I'm looking for is a folder which is strong in the opposite direction...
Click to expand...

The design of the Tri-Ad lock means that if the folder strength at resisting closing and opening strength is the same. All the resistance is provided by the same stop pin. Difference is it's either pulling or pushing at it (directional difference). Shear capacity of the pin is the same regardless of direction.
 
A ' Grand Brame ' - the one on the left on the pic, by Alain Descy would be fine for that kind of task.

descytrilogykn7.jpg





ELDE
 
looks like Andrew Demko is on to something;

http://www.coldsteel.com/rajahseries.html

The knife is too big, and it's a production knife, but here's a folding chopper...

Anyone know if Demko is still making knives?
 
Lorien people have bad things to say abot cs and Lynn Thompson but you could probale snag one for cheap on ebay and beat the hell out of it with no worries.

I like some of cs's stuff and have found them to be good hard users. I have a talwar that I am very fond of that has an extremely strong lockup better than a lot of high end customs I have played with.

I cut my hand and did tendon damage to a finger with a high end liner lock. The lock did not fail I inadvertanly when torqueing the blade tripped the lock. For this reason I would stay away from liner locks in favor of a different locking mech.

Hence my pension for fixed blades. Good luck in your search
 
JParanee said:
Lorien people have bad things to say abot cs and Lynn Thompson but you could probale snag one for cheap on ebay and beat the hell out of it with no worries.

I like some of cs's stuff and have found them to be good hard users. I have a talwar that I am very fond of that has an extremely strong lockup better than a lot of high end customs I have played with.

I cut my hand and did tendon damage to a finger with a high end liner lock. The lock did not fail I inadvertanly when torqueing the blade tripped the lock. For this reason I would stay away from liner locks in favor of a different locking mech.

Hence my pension for fixed blades. Good luck in your search
Click to expand...

Joe, I agree with everything you said, even the finger damage part.

Twice I've opened my Benchmade 630, and because there was crap stuck in the locking area it didn't fully open when I thought it had. One swing was all it took to nearly sever the top 1/4" of my right index finger off. A number of stitches, a cool scar and a little lack of feeling at the end of my finger was the result of that gongshow. Another time that happened, the blade swung right into my knuckle. Muscle memory and reflexes gained from the previous incident:rolleyes: kept that damage to a minimum with no stitches but it could have been really ugly.

Which is one of the reasons why I like fixed blades too! Less maintenance as well.

But it is very handy to have a knife which goes in your pocket and a folder just takes up so much less real estate.

I would trade one handed closing for an out of the way liner lock.
 
Another vote for a Burchtree Folder.......I chopped on 2x12 at work with it, even without the IBKS it is silky smooth and it dwarfs the Strider RC in size........it is like a machette in your pocket, choke back on the grip for more leverage and you could cleave an arm off!.....well maybe.............
DSC00912.jpg
 
I've used a Spyderco Manix 2 for this. The construction of the lock seems like it should take this sort of abuse very well. The "stop pin" is an inch long steel bar :)
 
Bladeandbarrel said:
The Cold STeel Rajah with TriAD Lock held over 2000 inch pounds at the pivot.
Click to expand...
Wow. Impressive knife, regardless of the negative hype on the company. The triad lock is brilliant. Video is compelling. Thanks!

Coop
 
Gravelface said:
Another vote for a Burchtree Folder.......I chopped on 2x12 at work with it, even without the IBKS it is silky smooth and it dwarfs the Strider RC in size........it is like a machette in your pocket, choke back on the grip for more leverage and you could cleave an arm off!.....well maybe.............
DSC00912.jpg
Click to expand...

Hey Gravelface whats up buddy. Happy New Year

You taking care of my AK :D
 
JParanee said:
Hey Gravelface whats up buddy. Happy New Year

You taking care of my AK :D
Click to expand...

You know I am!:D

I just broke it out yesterday to get some handle time on it, still the finest of the bunch:thumbup::thumbup:

Should be a good year, best wishes to you and your family!
 
I would also suggest looking at the CS Rajah II. I'm seeing them at the cyber-stores for ~$100.00.
Had one in me mitts recently and it is a MASSIVELY built folding knife. The stop pin looks like it's 1/4" thick and the pivot looks to be huge too.
The Triad Lock is very impressive and the blade locks up with a stout CLACK! It has a full length and width metal frame under that Grivory exterior. The AUS-8 blade is about 6 1/4" in length and is approximately 3/16" thick. Maybe 5/32". I'm not sure, but, it sure wasn't 1/8" as is found on most folders.
The one thing I could call a con about it is it's width which is about 2 1/4" at the widest point.:eek:
I love mega-folders and this one trumped all the others I've ever seen or owned in sheer mass. And, I've EDC'ed a Sifu, CUDA Madd Maxx 5.5, CS XL Voyager, Skirmish and a Rukus.
(I loves me some mega-folders now.:) )

If you can, get your hands on one cuz this is a folder that has to be hefted to be able to appreciate it.
Oh yeah, this is one folder that is not for people concerned about a folder's weight and pocket space.
 
Does anyone here have any experience with Dozier's tab lock?
Strikes me as a design that could be really effective at dealing with those heavy hits...
 
just in case you thought maybe I'd given up on this quest;
IMG_51301.jpg
 
Lorien said:
looks like Andrew Demko is on to something;

http://www.coldsteel.com/rajahseries.html

The knife is too big, and it's a production knife, but here's a folding chopper...

Anyone know if Demko is still making knives?
Click to expand...

Adam was carrying a Rajah when I first met him. He was over at my parents house and one of my brothers wasn't too sure about this guy yet "Did you know he has five knives on him...right now, do think that's kinda weird?" he whispered. I glanced at Adam and could only see two pocket clips showing. "He's a knifemaker" I shrugged in his defense. "Hey Randy" my brother called to a carpenter who was working for my dad "would it be weird for you to be walking around with five hammers?" Randy didn't hesitate "Nope" I looked at my brother "So there you go!" Anyhow, he likes it for a pocket chopper, of course he seems to have plenty of other options routinely on hand as well :)

-HD
 
yer my kind of people!
 
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