Use primitive shapes and MATH to create precise objects. This will also introduce you to rotating objects, and a key difference between primitives and meshes when scaled.
Here's the complete series:
Part1: Primitive Objects - • Anim8or Flying Saucer Model Part1: Primiti...
Part2: Moving Around - • Anim8or Flying Saucer Model Part2: Moving ...
Part3: Materials - • Anim8or Flying Saucer Model Part3: Materials
Part4: Lathing - • Anim8or Flying Saucer Model Part4: Lathing
Part5: Extude - • Anim8or Flying Saucer Model Part5: Extude
Part6: RayGuns - • Anim8or Flying Saucer Part6: RayGuns