Very simple model using only a single cube mesh to start and extruding faces / moving edges.
A more complex model using only a single cube mesh to start. Face extrusion / edge movement for more complexity.
A more advanced (though not by much!) model that began with a cube mesh. I deleted all but one of the verticies and used SHIFT+D to copy and move it. I drew out the ‘chassis’ and connected the verticies via ‘F’. Other meshes were added to add more detail. Making use of the quad view (CTRL+ALT+Q) was very helpful here. Face extrusion ,scaling and edge movement were used to create shapes.
