If I may suggest, I would model these as stone walls rather than sandbags. Like in this picture:

http://www.finn.it/regia/immagini/st..._act_365sq.jpg

Improvisation was King and Queen in NA.
So, don't get too precise on the objects. They were made with whatever was available.

Is that stone ?

Well played around this morning before work with SolidWorks and created a surface model of based on my drawing (the modelling was about 10 to 15 minutes of work).

To get it to look like the photo I had to increase the base of the walls to 1 metre and given them a 5° draft, wall height here is set to 2.5 metres.

Just so I can see what it would look like skinned, I’ve placed a default brick texture over the surfaces of the model.

https://scontent-syd1-1.xx.fbcdn.net...c3&oe=57615382

Now I need to try and get this model into 3ds-Max, which I'll try to do tonight.

To get an idea of how many polys are in the model I converted it to an STL:

https://scontent-syd1-1.xx.fbcdn.net...09836992_o.jpg

Nice, I like it!!

Before you procede further, may I ask you to build a simpler version without the backdoor? Thanks :)

Done!

https://fbcdn-sphotos-f-a.akamaihd.n...433206cc00deca

https://fbcdn-sphotos-e-a.akamaihd.n...fa63ab35fc0cce

The two part pen could be split into 2 parts to make the C-shaped, "anchor-shaped", or Z-shaped pens.

Perfect!!!

Now it would be better if a 3D modeller from DT could check the model and how it could be imported into 3D Max. Maybe Sita? :)

i can check model .... i give to Spudkopf my example of objects..