I am attempting to print a whistle, specifically a slightly modified version of https://www.thingiverse.com/thing:2981309 Inside the whistle are small air chambers that need to be as smooth as possible. My main issue is that Cura will sometimes make a travel across the chamber, risking stringing which can mess up the airflow a lot, when Cura could just have the nozzle go around the chamber to the other side. I have messed with the "combing" setting in travel, and it makes a lot less travels across the chamber, but there are still some. Additionally, most of the travels it does make are with retractions, which reduces filament flow, but every once in a while there will be a dark blue line instead of a light blue line, signaling that the nozzle will travel without retracting. I also have a less significant issue with the top of the chamber sometimes sagging. It is mostly fixed with the experimental bridge settings though. I am asking to see if anyone has had similar issues with Cura not going around, or not retracting, and how else I can reduce stringing as much as possible. I also increased the travel speed, that made it worse, so I'll probably decrease it to solve a lot of it.