TDK - Joker Knife

[SupermanCantFly]

So it took about week for me to find this but I finally found a distributor who sells the replica Dalton Cupid knife that Heath Ledger uses in The Dark Knight. Got it from DirectKnifeSales for about $35. Really nice quality on the blade and the spring action is really strong, got some kick to it when the blade comes out. There were other sites that had the same knife but those had serrated edges and the "joker" imprinted on them and the hole drilled all the way through it which I did not want. This as close the real thing as I could find and should suit my "Joker" display case nicely once I'm done with it. Oh and by the way "Do want to know how I got these scars?"

 

[NoTsOsErIoUs]

As a knife, it's a piece of crap. As a prop from the film it's invaluable.
I dare say you'll be after a Lancashire potato peeler now eh?

 

[SupermanCantFly]

As a knife, it's a piece of crap. As a prop from the film it's invaluable.
I dare say you'll be after a Lancashire potato peeler now eh?

I don't care if its considered a piece of crap or invaluable. There this thing called a nostalgia factor, that's why they call them "replicas" dude.

 

[NoTsOsErIoUs]

in·valu·able adj
\(ˌ)in-ˈval-yə-bəl, -yə-wə-bəl, -yü(-ə)-bəl\
Definition of INVALUABLE
: valuable beyond estimation : priceless <providing invaluable assistance>

Maybe invest in a dictionary "Dude!".

 

[Akira]

The Dalton is a replica of the original, which is a Smith and Wesson SW1600 Extractor. (of which I own one)

 

[GrenadeKing]

For the last 3 years I have seen several people talk about the cheap knife being inspired by a real knife. I've seen several referances to Smith and Wesson (which is cool considering his SMG is also an S&W) but, until now I have never seen concrete proof. Thank you very much for sharing. :thumbsup

 

[darthwhitey]

Hey AKIRA,

where'd ya get that knife? :love

thanks!

 

[Akira]

Hey AKIRA,

where'd ya get that knife? :love

thanks!

Picked it up maybe 5 years ago, at my usual knife supplier, when they first came out. It would be hard to find/get one now, limited/short production. Then all the copy cat versions (Dalton etc) came out using the same design.

Tim

 

[Majonaise]

Yeah, S&W do lots of short runs of all kinds of different designs. Many of 'em are cheap pieces that quickly rotate thru the sporting goods stores on super sale, which is a bummer given the quality of their firearms.

 

[Annathema]

From that first pic, it looks like a potato peeler *giggles*

 

[Nexus6]

in·valu·able adj
\(ˌ)in-ˈval-yə-bəl, -yə-wə-bəl, -yü(-ə)-bəl\
Definition of INVALUABLE
: valuable beyond estimation : priceless <providing invaluable assistance>

Maybe invest in a dictionary "Dude!".

Zing! :lol

 

[Cletus]

I love my original sw1600 extractor.

 

[Doctor Octoroc]

I love my original sw1600 extractor.

Thanks for posting those detailed pics! I've been working on a 3d printable version of the prop that'll be spring loaded and functional (as a prop, of course), complete with locking mechanism and also featuring a 'gag' retraction (so I can safely pretend to stab my friends), and these pictures were invaluable to the process. It'll cost around $25 to print and probably be about $32 total with springs, paint, etc.







I still need to build up the lip/groove around the inside edge of the shell for the two halves to fit together and find the right springs so I can design the body and blade to accommodate them, but the tricky design work is done. Thus far, finding a spring that's within the required width, length, load rate and compressed length for the main blade has been difficult - they're either too strong, to wide or not long enough, let alone short enough when compressed which is one of the more important measurements that a lot of sites don't list in their comparisons so I'm required to do quick calculations to find that length based on the load and wire width.

If nothing else, I'll find a spring that fits all specifications aside from free length and stretch it out to the required length I need. If anyone has any suggestions, I'd be very grateful! It needs to be about 4" long, .5" or less when compressed, have about a .25" diameter and not have more than a pound of force when fully compressed.

 

[Doctor Octoroc]

UPDATE! In searching for the right spring, I popped into a Halloween store and picked up a $4 gag knife, opened it up, and there was my perfect spring!

Okay, so it wasn't perfect - it was the right length and strength but the outer diameter was 1/16" too large, so I basically had to rebuild the knife from scratch to be thicker from front to back (it was a tad too thin to begin with anyway) and I relocated the main spring to be further to the side so as not to interfere with the push switch as it launches towards the front.

I also took the opportunity to fix the bevel on the knife blade to be more accurate, as well as convert the screws to hex instead of rounded. Here are some nice renders of the finished thing from the outside:





And an exploded view to show the internals. I added two extensions on each side of the knife to work in conjunction with the guide tracks on the inside of each shell of the main handle to put less stress and friction on the main blade - this should help with paint wear.



If you're curious how the switch gets into it's rightful place inside the slit of the knife, I'm going to slice the back end of the blade part to feed it through then glue it back together. Since all the pressure on the blade coming out is from the opposite end and the pressure from pushing it back in opposes the opening, it shouldn't really matter if it is glued back together, but it's for good measure.

 

[Kitty Butler]

Spiffy! I have a knife that I got from a small Asian goods shop at a local mall. It looks awfully close, the blade flips out from the side.

 

[Doctor Octoroc]

Spiffy! I have a knife that I got from a small Asian goods shop at a local mall. It looks awfully close, the blade flips out from the side.

That was my backup plan if I couldn't get the model designed, printed and functional by Halloween but based on my experience making a pair of gauntlets for an Edward Scissorhands costume using real scissor blades, this is far more preferable to having an actual weapon haha.

I actually got a message from the printers asking for some info on the print since it looks like a legit weapon lol. I told them it required extra parts to function and they approved.

 

[drewp05]

That was my backup plan if I couldn't get the model designed, printed and functional by Halloween but based on my experience making a pair of gauntlets for an Edward Scissorhands costume using real scissor blades, this is far more preferable to having an actual weapon haha.

I actually got a message from the printers asking for some info on the print since it looks like a legit weapon lol. I told them it required extra parts to function and they approved.

Did you ever finish the printing files for the knife?

 

[Doctor Octoroc]

Did you ever finish the printing files for the knife?

I did! The paint job was a bit rushed but the print itself turned out good and the spring action worked like a charm - it was actually a bit stiffer than I wanted so I didn't go around 'stabbing' others as much as I would have if it had more give.

And here's the full Joker get-up along with my girlfriend as HQ:

 

[drewp05]

I did! The paint job was a bit rushed but the print itself turned out good and the spring action worked like a charm - it was actually a bit stiffer than I wanted so I didn't go around 'stabbing' others as much as I would have if it had more give.

View attachment 1289587

And here's the full Joker get-up along with my girlfriend as HQ:

View attachment 1289588

Would you be willing tro send me the files I've been trying to find the real knife or one like it but they're all sold out and you're the only person that has the right sized files for 3d printing.

 

[BlueOlives]

Would you be willing tro send me the files I've been trying to find the real knife or one like it but they're all sold out and you're the only person that has the right sized files for 3d printing.

I am also interested in the files if you're willing to share?