Steve Johnson

Founder and Dictator-In-Chief of TFB. A passionate gun owner, a shooting enthusiast and totally tacti-uncool. Favorite first date location: any gun range. Steve can be contacted here.


  • Pliskin

    Over the next two years I will be going to school for gunsmithing. A few years after that i’d like to have everything set up to build American made semi auto MP44s and sell some. If nobody beats me to it that is. Thanks for these blueprints, I will save them for a later date.

  • Mouse

    If AutoCAD Inventor hasn’t changed too much since I was in High School, it’s shouldn’t be difficult. Just transfer they exact measurements from plan to program.

    • Mike Knox

      You don’t necessarily need CAD to translate schematics/plans to test out something. Just rudimentary models would work..

    • Anonymous synonomous

      Even while I was in high school they’ve changed the interface for Autodesk inventor quite a bit; they added an office style ribbon with a bunch of features I haven’t even touched on yet.
      That said, this is really, really cool.

  • I could be persuaded to take on the project, for a nominal fee. Make me an offer and we’ll talk…

  • richard

    I can see why the brits made the grease gun.

    • Garden Hose

      The Brits made the Sten. It was the Americans who made the M3 “grease gun”. (Please correct me if I am wrong.

      • 6677

        Your correct
        M3 grease gun is american, Britain never used M designations on equipment. We use L instead.

        True though, the sten was built to be incredibly simple, unlike the STG. But I don’t think the sten was always built to a very good quality, they were made in workshops up and down the country, they couldn’t have been very consistent, they were also only made with basic tools.

  • milo

    Im sure a ton of mechanical engineering students would like to test out their skill, im a student in structural engineering and I have a slight knowledge of ME but the software is too damn expensive. I’ll ask around at my college and if I find any takers that’ll do it for free I’ll shoot you an email.

    • 6677

      A friend of mine is going to be doing mechanical engineering next year. Already 3d models now but only in sketchup, made a mean looking L85 with it though even if it is for architecture, maybe I’ll see if he’ll send steve some screens. I’ll send these his way regardless

      • milo

        Good plan, I found sketch up to be too hard to use when creating a concept for a tazer like device that me and my friend want to patent. The prototype is due in January. Personally a tazer is somewhat ineffective against an attacker but still

  • Eric

    Where/how did Sven get the plans?

    • milo

      Good plan, I found sketch up to be too hard to use when creating a concept for a tazer like device that me and my friend want to patent. The prototype is due in January. Personally a tazer is somewhat ineffective against an attacker but still.

  • Ian

    Converting these prints will be difficult enough. A lot of the dimensions are illegible and some of the drawings confusing. An animated assembly will be a laughable venture imho seeing as there really aren’t assembly prints.

    Not impossible, but nowhere near as easy as converting a set of 1911 prints.

  • I know its not the same model, but I have GD2, and it offers 3d cut-away views

  • C3PO

    From my vague memories of technical drawing/CAD classes, I remember that Europeans typically use first angle orthographic projection which varies from the US-typical third angle orthographic projection. . . we never covered what the Reich used in the 40’s, but if someone is going to take this on, I figure a word to the wise can’t hurt.

    more on drawing:

  • Bryan S.

    Converting a rough sketch to a parametric model in solidworks would make for an interesting project. I would assume it would take some time, and I know the billable rate for most low level cad work hits about $45 an hour.

    If I had spare time, I would be up for the challenge, but sadly, I do not.

    • Bryan S.

      And old bad aged plans = bad sketch many times. Ive worked with similar architecture plans from the 1920’s and earlier, its not all that fun.

      • Ryan

        It works best if you have some hardware to compare.

  • Mike

    If old and in accurate plans were not problematic enough, it’s all in metric, the views are european style and it’s annotated in a foreign language.

    Sounds like the nightmares I used to get saddled with, there are a LOT of hours in that project.

  • jiminyt

    there used to be a complete model of the stg 44 on the guy who made the model pulled the files but there are still a few parts up on the site.

  • Jeff

    For my job I had to convert German blueprints of a mortar round to english… that was a pain and took months. To properly convert the metric dimensions and tolerances to english and ASME standards will likely result in something that isn’t affordable to produce. The tolerances cause a lot of issues and unless you’re an expert on the weapon, you won’t know what dimensions you can round up or down on. Even then you’re accepting the fact that you will have tolerances out to four or five decimal places.

    • Marc

      Why would anyone in his right mind convert to imperial?

  • Tstallones

    I would do it if I had better blueprints. The receiver prints are very poor and
    do not show required detail. The same is true of some of the other parts.
    If anyone has better prints I will make the 3d model free and available to everyone. Tod

    • ozarkgunsmith

      I have better, clearer drawings of the receiver and the trunnion if they are needed.

  • WhatsHisFace

    A 3d model would be pretty cool, but the plans are difficult to read (some of the numbers are unclear). Also has anyone found what units they use? I would guess mm, but they seem to be closer to cm.

  • Ryan

    Personally I would love to see every gun drawing placed online. Better yet ProE or Solidworks models. Crowd source might help. I haven’t been in the drawing business for a while. Does anyone know of a free or cheap 2d or 3d modeler that produces models good enough for actual manufacturing?

    • Doesitmatter?

      You can get SW or similar software for (well, almost) free thru one of user groups. But let me warn you: if you have no experience in solid modelling you may as well forget it. Everything is a specialised trade nowadays. Mechanical engineering is no exception.

      One thing tickels long my mind though. You hear that this and that ENGINEER (implying a graduate person with appropriate certificate) is responsible for this and that design. Now, was JMB engineer? I do not think so. He was ‘just’ genius mechanic and that was plenty good at his time. So were other people such as those responsible for birth of AR rifle line. In final count it is talent and persistence which count.

    • Logan

      I use Autodesk Inventor and AutoCAD. You can pick up the free educational versions from there education website. The only difference between the educational version and the real thing is that if you print something from the educational one it has a watermark on it. I also think you can get pro E and solidworks for free maybe.

  • Lance

    Forget the blue prints why cant a companies who like to make historic WW2 firearms make a cheap semi-auto version for us?? Mitchell Mauser or Gibbs fire arms make a killing selling copies of the STG44 for $500a pop.

  • Doesitmatter?

    This is apparently not worklable, leave alone motivation. To read old Germie drawing will be big challenge for average North American anyway. For those who are interested in building SMG (Sten or PPSh); I had seen time ago publication “Subachine Gun Designer’s Hanbook” published by Desert publications, 215 S Washington St., ElDorado, AR 71731-1751. I believe you can also pull it down at but not sure. Quality of drawings was decent and they were done in NA customary way.

  • Nathaniel

    You’d have to make sure you animated the huge gouts of fire that are visible in the daylight that come out of the ejection port when you touch one off.

  • Torben

    I am not an engineer but German is my native language.
    My father used to do machining and my mom went to school for technical drawing.
    If there is some serious interest to convert this into something which could get fed into CNC/CAD software and as long as it the result would be public domain, free for anyone to use. I’d be glad to help translate what I can and I can probably ask my parents for some basic explanations of what some of the notations mean. Neither of them have done this in decades or ever converted anything to inches but they might be able to provide clues which are otherwise lost in translation.
    While I am a computer geek, the whole 3d modeling is foreign to me and I would not know where to start even if i had the software. If someone with 3d modeling experience wants to start a project on one of the websites which specialize in those projects, post it back here and I’ll be happy to provide what i can.

  • Daniel

    Contakt Wirgart Racing in Sweden.
    We can help you with a project like this.