The Assassin Extension Knife

I'm going to start a new post for this new weapon design.
PLEASE KEEP THIS POST ON TOPIC. DISCUSS THIS DESIGN ONLY PLEASE.
We seem to have so many it just gets worse when they are mixed together.

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Recieved my 'Assassin's Extending Knife' in the mail today.
It was $135.00 + $10 to have it sharpened.

Description:
The Assassin Extension Knife locks into place with a simple slide.
A release button allows it to slide and retract.
Attaches easily to your Assassin vambrace.
• Overall: 19-1/8"
• Wt: 1 lb/4 oz
• Blade: 9" long, 5/8" wide, 3/16" thick

Buy it here:
http://www.atlantacutlery.com/atlantacutlery/detail.aspx?ID=1946
or
http://www.windlassstudios.com/p-76-assassin-extension-knife.aspx

Here it is out the box...smells like oil.


Closed


Extended


The blade and sleeve.


Close up of the blade. Rounded tip to be a safe prop....it's a easy fix on the belt-sander.


The sleeve and front.


Here's the button lock. Very simple, this is all you really need guys!!



Opened up. Here's what you guys have been waiting for!!!! And it's simple!









How the flex cable is attached to the blade.


How the sleeve is attached to slide plate.


But how does it all work?!?!?! So simple....


It's so basic it's almost embarrassing.
If this is the first of this design I'd love to see really nice version made really strong.
It's great for what it was made for, a costume prop or addition to a collection.
That's why it has a rounded tip. It would be easy to make it a sharp point on the belt sander if you wanted.
I can't see it taking too much abuse before it broke or bent.
As it is it came without the lock spring, so I had to open it up to fix it with one of my springs.
Not a real big deal, but I wasn't happy about it until it was fixed.

It's a little big...but looking at it I really think it could be done without the top half of the 'box'.
If you re-positioned the lock this might be able to be made half thickness. That would make a big difference.

Can it be made automatic? Semi-automatic?

Maybe.
I could see a few different ways of redesigning this, maybe with springs....maybe with a lazy-tong...or both.
The cable and pully extension system is so simple, it's how our curtains used to work as a kid.

Is it worth the money?!?! That is up to you to decide. I know I'm happy I have one!!

O.k......did I cover it all??? Any questions??

Now....on to the redesigns and the project builds!!!!

I see the blade, when open, actually runs all the way back into the main body.
I was thinking the premise was to gain extended length vs closed length
rather than just a simple OTF length doubling affect..

The pulleys shorten the opening knobs travel distance.
Rather than traveling the whole blade length.
very neat design.

and the middle sleeve is decorative, not structurally a requirement.
(other than a stiffener when open)

Good photos, very explanitory.

jerryk25 wrote:

I see the blade, when open, actually runs all the way back into the main body.
I was thinking the premise was to gain extended length vs closed length
rather than just a simple OTF length doubling affect..

The pulleys shorten the opening knobs travel distance.
Rather than traveling the whole blade length.
very neat design.

and the middle sleeve is decorative, not structurally a requirement.
(other than a stiffener when open)

Good photos, very explanitory.

:/ i never thought of making it a vestigal(not the right word for it, but i cant think of anything else) sleeve :) that would certainly make it easier

This is nothing new...we've had similar designs on here for months.

Remember this??



Same idea done with a pistol.

It's a little different....this is opened with a arm movement and the other is opened with a manual knob.

What do we call it???....Pully extension?.......
With this design I could see having a lazy-tong at the back. A finger pull would open the lazy-tong extening it, this would move the knob (or replacement part), and that would open the blade. If you had springs or elastic to close the lazy-tong...like in the Gambler's Holdout....when you unlocked the blade it would auto-retract.


:: :: :: :: :: ::

Sweet... We begin again...
I have an idea for a DA OTF implementation... (sparked partially by the halloween challenge, got me thinking about it again) needs a bit fleshing out and is, (as usual for me), a bit on the complex side, but I think it will work... Time to get back into the groove...

jerryk25 wrote:

I see the blade, when open, actually runs all the way back into the main body.
I was thinking the premise was to gain extended length vs closed length
rather than just a simple OTF length doubling affect..

I think we all did....We all have looked at the same schematic drawing game art, I think that was the idea but as we've said this was designed for looks first without a lot of thought put into the real inside mechanics.

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The pulleys shorten the opening knobs travel distance.
Rather than traveling the whole blade length.
very neat design.

yeah...we we're all trying to come at it a different way.

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and the middle sleeve is decorative, not structurally a requirement.
(other than a stiffener when open)

Very true. That's what threw us all. We all seemed to think that the sleeve was more of a extension than a cover.
I still think that I would want it there.
After handling this oject a few things come to mind on how it would have to be improved to make it 'combat ready".
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WOW!!!
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O.k. .....I just strapped this thing onto a leather wrist bracer and tried it on and really played with it for the first time.

Damn!!! This is a killer flick knife!!! It's great! Sure it could be tweeked a little....but really, this thing ROCKS!!

Strapped it on and wore it under/wrist side and gave my arm a snap. 'SNIKT' .....Perfect!!
Was able to feel the lock button and knob through the sleeve of my coat and retract it from the outside.
Snapped it out a few times and played around with it open handed and also grabbing the sleeve as a handle.
I really like this a lot!

This is it boys! It took a while for it to get here, but this is what we've been waiting on and dreaming about.
Sure, it's not automatic...but once you flick it out with a snap of your wrist you won't care.
I played with flick knives all through my youth and switchblades in adulthood.
It's one thing to puch a buttton and another thing to flick your wrist...both are cool.
Switchblades are cool. Flick knives are fun. Different appeal.

Turned it over and had it on top and snapped it out over the back of my hand......badass!!!!

BUY THIS KNIFE! If you want a ASSASSIN'S CREED WRIST DAGGER this is it!!! You'll LOVE it!!






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There are ways to make this better.

Combine this and the SAW design..... a latch at the back and a slingshot spring to open, manual retract.
Ways to inprove this for a very small pistol for the classic sleeve gun seen in one of my post above.

Think about the difference between the sword and knives you buy 'cheap' online ($20-$200) and really nice real weapons made by real knife makers ($200-$2000)
quality blades, strongest parts, nice materials, stongest locks...

Now, I'm not saying the $20-$200 knives are crap, it's what most of us can afford and what we own, and for the most part they are of good quality.
But make everything better .
One difference is the knob if you had to have one, could be moved to the side and still work the same.

Put on those thinking caps and get out your art skills!!! Let's take what we know about OTF switchblades, SAW design, this pully extension...we have all we need to make some really nice toys.
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And hey, please spread the word... we seem to have a bunch of members but not that many really seem to be around. If you guys like the forum and what we have here, please take the little 'exotic automatic' banner at the bottom of my post and please go to places you think might like our forum.


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SWEEEEETAZ BRUV, IM GETTIN' ONE!!!!!

Any chance of a "sandman" type Taxi Driver clip me ol' Muckah?

Roughly how much abuse could the lock (out) take before it gave d'ya think mate, i.e if you HAD to draw in haste wold it penetrate? :)

BillSykes

Quote :

Combine this and the SAW design..... a latch at the back and a slingshot spring to open, manual retract.

Oi you know you gotta do it Bruv!

How would a "rectanglular" compression spring (think 1911 pistol magazine spring) be for fitting in there mate, just a thought

BillSyikes

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Any chance of a "sandman" type Taxi Driver clip me ol' Muckah?

Do you mean for me to make a video? or are you asking about a gun clip on a wrist device?

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Roughly how much abuse could the lock (out) take before it gave d'ya think mate, ?

Not much in my opinion as if you look at the pictures you'll see that the blade is held by the cable.
For a strong thrust it will need a lock beind the blade and this has a lock behind the knob tab.
In this design much of the thrust load would be on that front pully. A lock beind the blade would fix much.

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Oi you know you gotta do it Bruv!

We'll see what I end up building....

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How would a "rectanglular" compression spring (think 1911 pistol magazine spring) be for fitting in there mate, just a thought

Don't know, but it would be the right idea.

Wrist blades

Of all the different wristblade designs out there in life the simple ones seems to work the best.

We have many different designs on this forum that involve gear wheels, lazy tongs, springs, and this new pulley extension.

Many people want the switchblade version of Altair's wrist blade so they can open it with a hand motion.
This new real version is made in a manual version where you have to move a knob to open, but with a good snap of the wrist it open very quickly. If you read my post above you'll see that wearing it above and below I was able to snap it out fairly easy.

My point is, keep it simple. After playing with this I think this is one of the best ways to go. We can add springs and other things but it will just make it easier to break.


WHAT THIS WRISTBLADE DOES NEED...
a manual retract pull ring, spring loaded so it snaps back. That's easy, I can already see how it would work.
Move the knob to the side, attach a flex cable going back and around a small pulley back to the front with a ring and a return spring. Pull the ring and the cable pulls the knob back and the spring stretches. let go and the ring snaps back into place. This would be done with the other hand. Sure having it all work one handed would/will be cool, but this is really no big deal once you really strap one of these on. You really won't care, it's still cool as Hell!

A lock for the blade as I described in a post above.

Reposition the lock so we can get rid of the top half of the 'box'.

Make the whole thing strong as can be. .....I'm lookng at the different sheets of Titanium I have thinking how nice a full Tianium version would be.

Dood... You're killing me here Sinz... keep it simple??? Come on man... What fun is that?


Just ignore me. :) I spent the last couple a days banging my head against the wall brain storming on a new DA OTF design...

Quote :

Dood... You're killing me here Sinz... keep it simple??? Come on man... What fun is that?

I'm just saying for toys like this try to keep the mechanics as simple as possible so there is less chance of parts breaking.
After snapping this thing out over and over I can see that it has to made strong out of parts that can take a good amount of stress.
If you were to use it, the stabbing and slashing movements would put much stress on pretty much everything. So by keeping things simple and strong you try to weed out the weak links.

When you guys buy this you will need a armband. To do this right I like to make it tight with both lace up and strap
I'll make a picture of the one I'm building for mine.

One thing that is really nice is that with the armband I have I can grab it and give a turn to switch it from over to under.
You get the best of both worlds. ::

Sweetaz Bruv, answers all me Qs

BillSykes

billsykes wrote:

Sweetaz Bruv, answers all me Qs

BillSykes

Ditto!

Yeah, So the extension here is just for show, but the extension in the concept game art clearly has a slider and lock... I suppose it wasn't really necessary anyway... But I can see soo many beautiful possibilities...

BTW, thanks for the review! I've been so caught up in my own head the past few days, it didn't really hit me until yesterday (once i'd got it out of my system) that I was actually posting a response to a thread about a REAL AC BLADE!!!! ROFLMAO...

My apologies, I sometimes get tunnel vision when I'm working on an idea... On any other day, I would have been jumping up and down like a little kid on christmas morning...

Man... I'm such a freakin' dork... Now if you don't mind, I must now reinforce my position as king dork by stealing your pics and using them for a new AC blade post on my blog...

Kthnkbai!

Quote :

Kthnkbai

Been meaning to ask, WTF does this actually stand for Bruvz?

BillSykes

video clip pleas

Kthnkbai

ancient mesopotamian false god

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yes, video please, I second the motion/vote.

Nice one Bruv, cheers

I gotta say i prefer the look of wearing it under arm

BillSykes

more light for the video clip. its to dark

Quote :

more light for the video clip. its to dark

Eat some carrots BG, it works.

BillSykes

Man... that is sweet...

Hey Sinza, one more question, what are the dimensions of the housing?

are those two gears just mounted turning points, or are they actually rotating pullies?

Shit, sorry Bruv, forgot to say cheers for postin' the clip after i asked!

COOL AS FUCK!!!!!

BillSykes

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are those two gears just mounted turning points, or are they actually rotating pulleys?

They are pulleys.

Quote :

Hey Sinza, one more question, what are the dimensions of the housing?

The box is 10 1/4" x 1 5/8" x 3/4"
sleeve extension is 4 1/2" x 3/4" x 1/4"
exposed blade is 4 1/2" x 5/8" x 3/16".
Overall open: 19-1/8"
Wt: 1 lb/4 oz
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BUY ONE, YOU'LL LOVE IT!

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Don't forget you will need a wrist bracer to strap it tightly to for you to really enjoy this.
I'm making mine, not that hard...just takes basic skills and a little time.
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Now here's where the fun begins. I've already started my drawings, but we need to figure out how to make this.



I'll post my design after I work out a few things, but if this is what works we need to be able to make this as strong and as simple as we can. One thought is to start with a steel rectangular box the size we need and cut it away to make the slider with pulleys. Would be nice to be able to build this without welding.
::

well, i said in my hidden blade design topic that my dad would make a drawing right?? well, before this REAL hidden blade was posted, we had the same idea with catrols and an steel cable. i will nag anough to make him to draw that drawing this weekend , so this will be on my topic.

jeroentjj wrote:

well, i said in my hidden blade design topic that my dad would make a drawing right?? well, before this REAL hidden blade was posted, we had the same idea with catrols and an steel cable. i will nag anough to make him to draw that drawing this weekend , so this will be on my topic.

Shoulda Coulda Woulda Didn't ...yep....

I've drawn this out, I'll post tomorrow as long as my computer stays alive...been having problems...
I've also done a couple of drawings on how I would build it. I'm also repositioning the lock and adding a return pull cable.
Another version is a combination of this and SAW Gauntlet Stiletto. ::

OK, Sinza, I started playing with SketchUp I think I'm slowly getting the hang of it, want to see if I can do the same thing I do in a vector graphics proggy in SketchUp.

I'm want to revamp this design, but am curious about what kind of things you would be in an ideal revamp. Single action Double action? With the sleeve? Without the sleeve? Cable operated? Lazy tongs? Saw rail or channel slider?

Ideas?

im back what did i miss. a lot looks like they did it .sweet hmm. must try making one of my own mabie without the sleeves i can see that weekening it if it were used for stabbin... new ideas and new designs are poppin into my mind... im babbaling now... thanks for postin this.

I also started playing in Sketchup...I'm gonna need to do a few tutorials before I get the hang of it. I played around...made a few objects...imported on from the library....yeah, I'm gonna need to find a few hours this weekend to see if I like it or not.

........................

What this needs as a re-design:

1. Blade Lock- I started to put pressure on the blade tip (I was stabbing my desk) and the blade was being pushed back into the slide. The cable was slipping on the cable-lock screw. As this is the lock is on the knob tab.
   
2. Get rid of the whole top half of this 'store bought' version. All it has is the lock, so this must be moved in a way so it works but without the wasted space.
   
3. The knob & tab could be taken out and a tab put on the side without changing anything. This would also lower the thickness.
   
4. A flexcable-ring needs to be put in doing either one of these actions: operate the lock so it can be done with one hand...or have the ring set up for 'other' hand retraction by pulling the slide back...maybe done with two pulleys in back...
   
5. I'd keep the sleeve and make it a handle...just what I plan on doing myself. After you play with this a bit you would understand.
   
6. This needs more integration to the wristband. Just strapping it down doesn't seem strong enough. I'm thinking the need to be designed as one. More secure strap attachment...slots built into the base plate...holes in plate for riveting to leather. I made a wristband with straps and it just needs more. The leather needs to hold the whole unit more. I'm thinking maybe pockets at the front and back to hold it more secure or the best would be cover the whole thing with leather to secure it totally. So they would need to be designed together in my opinion.
   
7. I'd say 9inches or 8.5. 10 is just a little to big in my opinion.
   
8. Cable Lock-This needs to be stronger.
   
   ...lazytongs...They would work to move the knob (or it's replacement) forward with less movement. Problem is making it strong enough to move this whole unit. Would be another version I think. No need for gears like we had, just pull the back center pivot straight back and that opens the whole thing.
   
   A channel would be thinner than using rails, but the whole thing needs to be lubed to the max!
   
   The whole thing needs to be redesigned for militarty specs. It needs to be strong enough that it's real and can really be used, this is still a prop. A good design but a weak one.
   

Okeydokey... I think I'm gonna play with it a little this weekend...

Quote :

I think I'm gonna play with it a little this weekend

What, you get a new porn flick Bruv?

BillSykes

I am.. with my little amount of experiance definately going to construct this assassins Creed Blade when you have made the design (with a little bit of my dads help lol )

billsykes wrote:

Quote :

I think I'm gonna play with it a little this weekend

What, you get a new porn flick Bruv?

BillSykes

Not really what I had in mind, there Bruv... Unless nerdgasms count...

Phyreblade wrote:

Okeydokey... I think I'm gonna play with it a little this weekend...

These might help

http://patft.uspto.gov/netahtml/PTO/srchnum.htm


1,411,649

2,665,478
1,315,503

472,104
515,743
569,452
35,964
317,208
1,024,749
407,863

Quote :

Not really what I had in mind, there Bruv... Unless nerdgasms count...

Whatever floats ya boat my Bruva!

Sykes

billsykes wrote:

Quote :

Kthnkbai

Been meaning to ask, WTF does this actually stand for Bruvz?

BillSykes

Kthnkbai is the internet's way of saying:"Alright, thank you, goodbye"

Alright/ok = k
Thanks/Thank you = thnks/thnk or thx, sometimes thnx.
Bai = bye.

Hope it helped. XD

Oh seeeeen!

Yeah Sweet for that Lil' Bruv!

BillSykes

2krptk 2ktchon

@Sinza
Sweet! I did come up with an encapsulated rail based AC blade system, was hoping to use Google SU to model it out and see how it works... And thus began my pain...

I don't care what anyone says, Google Sketch Op it is NOT intuitive. They dumbed it down by reducing your choices. No nudge? Forced snap tos? And Inference is a nice thing, but they built their ENTIRE modeling concept around it...

I was ready to kill someone trying to figure out workarounds for all of it's stupid quirks on Saturday...

Anyway, I think i've got it figured out, and I'll take a look at those patents and see what additional inspiration they provide... Thanks!!

@Billsykes
OOOPS! Sorry bruv, I meant to explain that whole kthnxbai thing and i plumb forgot... I knew I was forgetting something... My bad...

@NR
Thanks for the explanation...!

@Jerry
Too cryptic to catch on...?? LOL You seem to have caught on perfectly fine from where I'm sitting...

L8r M8s!!!

Playing with my camera...need a reason for posting this...so....um... ...
..Check out the wristband I made for the extension dagger!!!

I don't like it... I mean, it works. It has laces and buckles, so it holds it tight. But even as tight as I can get it it still spins.
I can grab it and spin it from the outside to the inside fairly easy. So, in my opinion it really needs the palm strap to secure it.
Also. I can see the dagger case starting to take damage from slamming this blade out. The very front wall is starting to bend a little.
And the Wolverine claws???? Don't ever design claws like this! You'll break your wrist the first time you use it!

Sinz, if you had Viva Las Vegas Sideburns and a Rizzuto you'd be a dead ringer for Buddy Repperton from "Christine"!

Xiphoids look cool Bruv can see your predicament with the AC spinning round AND the excrutiating pain you would be in if you chopped sumink with them Wolverine claws too mate!

This any good?;
http://cgi.ebay.co.uk/WRIST-SUPPORT-BRACE-SPLINT-CTS-RT-HAND-SMALL-RRP-18-99_W0QQitemZ220302773071QQcmdZViewItem?hash=item220302773071&_trksid=p3286.c0.m14&_trkparms=72%3A1301%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318

BillSykes

LOL

@Sinza
You never need a reason to post cool pics of yourself with Xiphoids and hand claws...

@Billsykes
That wrist brace is the right idea, except it should be going a lot farther up the forearm. And also it's gets it's rigidity from solid splint in it that's meant to immobilize the wrist, with might make it a *wee* bit difficult to use...

I think Sinza had one i liked, it looked like it had a thumb hole, and wrapped up a good portion of the wrist. dunno if it would be stable enough for a xiphoid mount, but it looked good...

Wow I leave for 14 weeks and we have it all figured out and selling it to the public? Lol that's pretty crazy. I am definatly bui

Whoa... Incomplete post...? What happened there... You OK Sandman???

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Whoa... Incomplete post...? What happened there... You OK Sandman???

If this was a sci-fi movie, I'd say he got eaten, but since this is reality, I'm guessing it was a computer glitch. (Although considering the Balrogs and vampires we've got running around here, maybe this is a sci fi movie)

Anyway, have you thought of extending the glove to cover your elbow? If you used something like an elbow brace along with your current setup it might work.

I was thinking about it, and looking at the pic, you can see that the leather is actually bunching up a little in some places. This may be where the give is coming from. Perhaps using thicker, stiffer leather may solve the problem...

hey was würde das teil mir kosten wenn ich es über sinza bestell. sinza bekommt 200 flogen und ich das teil. währ das ein deall?


Google Translation:

hey what the part would cost me if I ordered it on SINZA. SINZA 200 fly and I get the part. currencies which a deal?

sinza have the hiddenblade but germany have the rest of the weapons:

http://www.schwertshop.de/schwerter/assassins-creed/index.html

I ordered one o' these but Im waitin for it to arrive..I hope it gets here before I have to move....