Soon he decided to rid himself of his former mathematics teacher and in 1575 Danti was told he had 24 hours to leave Tuscany. Danti had been working on a major project at the time of Cosimo's death, being he was in charge of the construction of canals to join Florence to both the Mediterranean Sea and the Adriatic Sea.
Sa lalong madaling panahon siya nagpasya na alisan na rin ng kanyang mga dating guro sa matematika at sa 1575 Danti ay sasabihan niya ng 24 na oras upang umalis sa Tuscany. Danti had been nagtatrabaho sa isang malaking proyekto sa panahon ng Cosimo ng kamatayan, na siya ay sa singil ng konstruksyon ng canals na sumali sa Florence sa parehong ang Mediterranean Sea at ang Adriatic Sea.