Concrete tank obstacle

[Kaczor]

I 3D printed some "concrete" tank obstacles. If you want to try here is link to my model on Thingiverse:
https://www.thingiverse.com/thing:3586001
https://www.thingiverse.com/thing:3596139

[Son of a gun-ner]

Thanks for posting and sharing these, they look rather cool

So, who used concrete tank obstacles like these? Asking for a friend. . . .

[Kaczor]

Both was used on all fronts i.e. Atlantic Wall, Siegfried Line etc.

[Son of a gun-ner]

Cool, thanks for the reply. I didn't realise they were that old. I've not seen them in old photos.
I need to read up on these designs now, they're rather interesting, looks like they were done to conserve concrete, although they must have used steel reinforcing.

[Kaczor]

Alantic Wall Museum:

[Model Builder 4]

Great reference pic, thanks for sharing

Cheers, Lee.

[Kaczor]

Some obstacles made of gipsum