Hi! Welcome to our first polymodeling tutorial. This is a beginner tutorial, but is good have read the previous basic tutorials to complete this.

Ok, come on! Let's model a volley ball and starting from a box!

Create a box 100x100x100 and 3x3x3 segments:

now let's convert our box to editable poly, you know, right click ‘convert to…'

Let's go to the left viewport and the polygon sub-object level. In this viewport we have to select the columns of polygons and detach it in elements, the order is from left to right (3 elements):

Now, from the Front viewport repeat this process in the order shown in the image:

and finally, in the Top viewport we repeat the previous step:

we need a more dense mesh if we wish transform it in a sphere so apply it a Mesh Smooth modifier with 2 iteration levels:

the result:

Now a little surprise. Again in the modify list, select ‘spherify':

voilá! If everything is right this modifier transforms the box in a sphere. Let's convert this ball to editable poly again. :-)

if you select the “element” sub-object level you can see how this mesh has the same elements as the original box, only that they're spherified:

in ‘element' level, select the complete mesh, now go to ‘polygon':

let's apply a bevel, if you're working with the same values as me, with 0,25 and -0,25 is enough for the bevel values:

and the result:

Now the ball has no quality enough, so let's add a Mesh Smooth modifier with 1 iteration:

To complete the model, you can create a new sphere into the ball to dissimulate the seams, also you can model a valve for the ball… the result after apply a texture:

As you see, is very easy. Hope it has been funny for you!! :-)

Continue training with your own models!!