After his confirmation, Aasmund traveled to Bergen where he studied to be a mechanic. For a number of years he worked there as a shipbuilder and metal worker until in 1891 he took the examinations to become a machinist. From that time on he was a foreman and frequent traveler on the seas. In 1895 he married Jakobine Elisabet Werner, the daughter of a master bookbinder, but they had no children. So they adopted a daughter, Aagot, in 1900. Aasmund was a good churchman, especially active in Baptist mission work.