Well known for his sculptures and films, Lamelas lives and works between Los Angeles, Buenos Aires, and Europe.
During the 1960s, he was one of the key members of the Instituto Torcuatro di Tella, an organization that promoted avant-garde and conceptual art.
The contemporary art movement in Argentina met opposition from the government starting in June 1966 when President Arturo Umberto Illia was deposed.
Newly appointed President Juan Carlos Onganía, a right-wing conservative, used the Argentine Armed Forces to suppress political opposition coming from universities and the youth.
Later the same year, his installation Situacion de Tiempo – Time Situation was on display in Buenos Aires.