Well, First time ever I could be bothered with Mr Maxim of Cumbria, and what a find he turned out to be! All I had to do was tote a heavy camera about for half the adventure and he gives me a nice shiny medical arachnid! (Thanks, Max!). Now to the problem. Maxim says that if you have an auto-loader and a clarington rifle, he will create a mechanised gun for me, but now I have both these items (clarington rifle at some expense!) and while I can get him to repair things, he doesn't give me the dialogue option to create the gun. Not that I'm knocking my Tesla gun. I am Captain Elektrik, after all, but I wouldn't mind some variety if I get in a pinch. So does anyone know what else I need, or any other ideas?
To tell you the truth, I have never asked him to make mechanized guns for me. When I need one, I normally steal it while doing the orc factory riot quest, or make it myself if I have the schematics. If you haven't done the orc riot quest, you can still steal the mechanized gun there. If not, and you can't get Maxim to make you mechanized guns, try making other good firearms. I recommend a blade launcher (30-60 normal damage, same speed and range as Tesla, uses 6 bullets).
Canis is right about the ingredents, auto-loading chamber and a Repeater Rifle ia what it takes to build the Mechanized Gun, but Max still can't do it. There is a mod that fixes it. Look here: http://rpgplanet.com/arcanum/tinkerer/tinkerer.shtml