Edit: I included a different version of the right roof, and the right wall. The difference is minute, but I like it better this way.
This bunker is based on the regelbau 677 drawings that I could find online. In reality a trench would be built behind the bunker, to protect the doors from direct fire.
I tried to create multiple smaller components that can be assembled to have the complete structure, so that most people could be able to print it. If you have any comments, please let me know and as always, if you print one, please share a picture of it, I don't have a 3D printer but would love to see the result!
These types of bunkers were also used with 1 side skirt. So you can print half a bunker without side skirt (check out my other models for the 667 without side skirt), and the other half with. I always like the look of bunkers when they are not symmetrical, it makes them look more interesting.
Leave a tip if you like my work :) I would love to make more of this kind of stuff, so please help me out :)
Message me if you have specific requests :)