Don’t try to save money by avoiding the use of a Braille translator. The law requires that all Braille be translated into a form of shorthand. A translator is the only way to make sure that your signs are correct.
Your engraving machine may come equipped with the translator. The Braille font, which is not the same as the translator, is another important issue. Although the California font is only required in California, it is legal throughout the country, and the increased spacing between Braille cells makes the Braille you produce more readable for beginner readers. Some engraving equipment packages also include California Braille fonts.
-Sharon Toji, The ADA Sign Lady