>>16452448In the TV series and movie, they don't use up all of the zodiac sign names, although OZ does have a couple of machines that aren't explicitly given zodiac sign names like the Tallgeese, Tragos, Epyon, Mercurius, Vayeate, etc.
If we go into the various manga, then all of the names get used for various designs. Capricorn, Sagittarius, Scorpio, Aquarius appear in different manga stories.