Create the chassis

Shape analysis

Observation of the object shows the following geometrical features :
 

a plane of longitudinal symmetry,

two identical recesses for the passage of the axes of the wheels,

a general shape prismatic (non-revolution cylinder perpendicular to the plane
    of symmetry).
 

The proposed construction chronology

There are obviously always several possible construction trees.

You can see the details by clicking on the icon-image at the top left.

How to do it with the FreeCad modeler ?

Each stage of construction is detailed below.

You will access it by clicking in the tree on the stage to consult.

Information :

Webm videos are available when you see the icon " ".

For file size reasons, they are kept to a minimum, but you can stop or restart them by pressing SpaceKey or clicking on the video.

Note :
Do not forget to close the video window after consultation because the following could be hidden by the main window.