Hello friends I will show how create a 3dsmax 3d world connectivity model tutorial.
I have used following techniques shown below in this 3ds max tutorial.

[1]-Start 3dsmax and choose "Chamfer Box" with the following size as shown below   
     Create chamfer box in the top view port

[2]-Create Donut with the following size and apply the extrude modifier with the amount of 1.0

[3]-Create box and set like this

[4]-Select the Donut and Boolean the box like this

[5]-Your object should like this

[6]-Set the donut like this

[7]-Create two more small copy of donut and create single cylinder now set like this

[8]-Create sphere with the following size now set like this

[9]-Now click on the line button and open the rendering palette now use the following setting
    Then create line like this

[10]-This is my material palette and creates materials some thing like that

[11]-Set the skylight like this with the following parameter

[12]-This is my final result are you looking it

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