Data Knife 2.0 – and copies to come!

Cosplay & Props Electronics Titanfall
May 31, 2017

While I was happy with my older dataknife versions, I kept having a nagging feeling I could do better. This, I think, is better. This knife is the result of a lot of different techniques and technology. The manufacturing process involves 3D Printing (to make the master copies), cold casting, laser etching and engraving, electronics and programming, and a whole lot of sanding, polishing, and painting. They are as close to a ‘real’ Data Knife as I think you can get at this point in terms of effects.


As I mentioned in a previous post, I spent time making actual molds of these prints this time around so that I could have a cold-cast metal item with some real weight and shine. The blade was done in cold cast aluminum, while the circuitry inlays were done in cold cast bronze. The handle was cold cast with graphite… although it did get painted over, this should mean that any wear, scratches, or other damage to the handle should weather fairly realistically. This thing has a good weight to it compared to my earlier 3d printed prototypes. The display at the top of the handle was done on my very own home laser engraver, then covered in a dome lens which is cast in clear resin and polished for clarity. The parts were all pressure-cast to eliminate as many imperfections in the final surface finish as possible.

1496210168EAmnHSG.jpgThe electronics in the device are not cheap, but after refining this idea for a few months they are the most reliable components I could come up with. A rechargeable lithium polymer battery powers the whole assembly; a microUSB charging port is featured towards the blade-end of the handle and can accept a standard phone charger to recharge. An RGBW Neopixel Jewel is installed at the top of the knife and a pair of 3mm blue LEDs are inserted into the side of the handle. A piezo buzzer is also inserted into a small acoustic chamber sculpted inside the handle to enhance its effective volume. An arduino is embedded in the knife that controls the animating lights and sounds, all controlled by a toggle thumb switch. On a full charge, it looks like the knife can run continuously for about 4 hours, but I don’t know why you’d ever want to run it like that.

The knife now features a clear laser-engraved acrylic display base. The sides of the blade were also custom laser engraved; the one pictured here reads “PILOT JACK COOPER”, after Titanfall 2’s protagonist. This could easily be changed to any other text (e.x. “LT. GRAVES”, or, like my in-game handle, “SUDDENLY_BEARS”, if you’re feeling less serious).


I’ve had a great time working on this, and now I want to see if I can’t recoup some of my costs. The question I got absolutely buried with when I shared my first version of the Data Knife was if people could buy one. Since that was a 3D printed piece, it didn’t make sense to try and sell them. However, I’ve got molds for these things all ready to go, and I know there are probably some fans out there brave enough to pony up for a knife to display along side their Collectors’ Edition helmets. The molds tend to only be good for a limited number of pulls, so I will probably be making and selling only a handful of these things.

So, lets talk turkey!


The full cost is $350 for a fully-finished, display-ready knife. Knife includes acrylic cut and engraved display stand, so you can put it with your collectors’ edition helmet or whatever you want. The deposits we’re asking for are $100, and can be paid by PayPal. If you’d prefer, I am happy to send an invoice instead, but you’ll need to provide me with your PayPal address.

We can custom-engrave the sides of the blade for you with whatever you want. Let me know if you want it blank, with PILOT JACK COOPER, or with your own custom callsign. Be very specific – if you request “LIEUTENANT SMITH” or something, that’s exactly what goes on there, rather than “LT. SMITH” or any other abbreviations. It’ll be blank unless you say otherwise.


Shipping is charged based on actual costs from our workshop in New Jersey. If you’re not in the lower 48 states of the U.S., let me know so I can figure out specifically what shipping might run. If you’re international, I need to know in advance so I can get an estimate on shipping times and costs.
These things are handmade. They are assembled out of multiple separate components. We do our very best to sand/fill/paint any imperfections, but there will always be some flaws, particularly where the seams of parts join together. My goal is to get you an item that you can unpack and put on display or bring to a convention right out of the box.
ETA on the finished knives is ~within three months~ right now. I have to source a bunch of parts for the run, then spend about a month casting enough parts for everyone before the assembly even starts.

Feel free to e-mail me at for more information if you find yourself interested.

In the mean time, I’ve added the files for the updated knife to the Downloads section. They’re also available right below. Happy making!

[download id=”3751″]

  1. Reply


    December 12, 2017

    Where may I go to purchase this? I’m very interested!

  2. Reply


    May 7, 2018

    I am a huge fan and I love love love your design but I don’t have a 3-d printer what should I do p.s I am subscribed 🙂