This time we are making a submarine. Basic 3DS Max knowledge is assumed.

Click on the front viewport and in it make circles with following parameters.

X:0.0

Y:0.0

Z:0.0

Radius:50.0

X:0.0

Y:0.0

Z:30.0

Radius:50.0

X:0.0

Y:0.0

Z:60.0

Radius:50.0

X:0.0

Y:0.0

Z:60.0

Radius:40

X:0.0

Y:0.0

Z:70.0

Radius:30

X:0.0

Y:0.0

Z:80.0

Radius:20.0

X:0.0

Y:0.0

Z:90.0

Radius:10.0

X:0.0

Y:0.0

Z:95.0

Radius:5.0

That’s the front side, now for the back side:

X:0.0

Y:0.0

Z:-30.0

Radius:40.0

X:0.0

Y:0.0

Z:-60.0

Radius:30.0

X:0.0

Y:0.0

Z:-100.0

Radius:20.0

X:0.0

Y:0.0

Z:-150.0

Radius:5

Now you got a funny looking figure of circles, next thing we do is to press “h” and select Circle08. Now click the right mouse button and from the menu select: Convert to > Convert to NURBS

After that we will fix the line that was converted to NURBS, select points as shown:

Now scale all these points to one (by dragging the cursor on the y axis on the gizmo scale) than click the fuse button and double click on these two seemingly melded points. To be sure they are one when you click on one of these next to CVs Selected should say 2 and not 1 as it did.

So you get this:

Do this again with the circles:

From the rollout, click the button “NURBS Creation Toolbod” and in the toolbox click the “Create U-Loft” button. Now be sure that your first circle is selected and now select in line every circle from front to back  (you will see a surface automatically being created).

Now for a bit of a fix, switch to level 2 sub object and go to left viewport and by selecting and scaling on all axis make a submarine like this (or what ever you like).

Switch to sub level 1 (keyboard “1”) be sure to have selected the newly created object in the “Surface Common” rollout and click the “convert surface” button on the opened dialog window to confirm.