How to create a bottle bottom on catia v5 like a coke bottel

I believe you are talking about the detail on the bottom of a coke bottle? Not exact, but gives a representation.

  1. Step 1:

    Create cylinder (or if creating real 'coke bottle' do sketch then revolve).

  2. Step 2:

    Create sketch of detail.

  3. Step 3:

    Sweep using 'Centre and radius', fill end and add a radius.

  4. Step 4:

    Circular pattern the sweep.

  5. Step 5:

    Trim together.

  6. Step 6:

    Add rads to edges and add a depression in the centre.