As for the top, Extrude and tighten the faces with Bend.



Select the polygon as in the picture and flatten it with a non uniform scale set to the axis Y.



As in the preceding page, simplify the mesh at the end, round and scale the vertexes to obtain the result opposite.


Make a non-uniform scale to ajust the dimensions of section indicated


Extrude the faces as in the picture and finish with Bevel.


Extrude the faces and Bevel again, adjust the vertexes to obtain the result above (scale non uniform on X and Move on Y).


Aim for the dimensions above.

Extrude the central polygon.

Insert a vertex and make the edges visible as on the last page.


Aim for the dimensions shown after scale non uniform on Y of the central vertexes.



Extrude the faces simultaneously.


Continue in the same way to make the following ones.

Use non-uniform Scale on X to position the vertexes horizontally and Move Y for the vertical.


Finish extrusions like above.


Select the faces as in the picture and make one Extrude and Bevel, then repeat with a negative Extrude/Bevel to make the
hollow.

To do one Extrudes without the news face not moving it is enough to move frankly vis-a-vis extrusion then totaling zero with the roll up of adjustment of extrusion. Then Bevel makes it possible to decrease the size of the extruded face, one thus creates a setback or an edge.


Select the faces of the lower part, then Extrude/Bevel as shown above left and then repeat as in above right picture


Make any minor final necessary ajustments.