how to make the robotic hand part 5

Create a cylinder and place it as shown;

Go on to edit poly and using the polygon tool scale the face down. 

Select the lines.

Connect the lines and ring them. Adjust the ring with the scale tool until it looks like the one shown.

Copy it. Rotate the copy and place it at the opposite side.

Attach it (Note, I attached it incorrectly but I corrected it as you will see later on)

Copy the front part with instance and rotate it straight.  

Select the top and bottom, and chamfer them until the model looks like this.

Then select the four lines as shown below;

And then chamfer them like so;

Using the vertex tool select the lines and curves and connect them as shown below;

This picture shows that I have corrected the top part.

Create a cylinder and place it as so;

Remove the extra lines you don’t need.

Then select all of them.

Now place a ring on it as shown below;

Adjust the face on it.

Create another one on the other side and connect it.

Create a box.

Now edit it as shown below;