The lower decks should have done a joke about the three ensigns on Voyager who did nothing except build shuttles the entire seven years.

They could do it in the shuttle bay, they wouldn't need much more space than a finished shuttle takes up. We know they have shipboard replimats for larger things, I figure replicating and building standard shuttle models on long voyages has standardized procedures and steps like Lego instructions. You only need to replicate one piece at a time saving on space. Gotta replace your shuttles somehow on those 5 years missions and the nearest Starbase is months away.

Ex Astris Scientia calculated that Voyager lost 17 shuttles in the Delta Quadrant.

They did canonically build the Delta Flyer from scratch.

Now you know what really happened to the Kazan.

https://xkcd.com/1401/