When 3D printing a model I currently do a "save as mesh" operation to a Google Drive folder, then move to a different machine, import the model to S3D and print. This is quick and works fine for a new STL file, but if overwriting an existing file I find I need to save it twice for the new contents to be replicated. This is using Windows, and might be related to how the file I/O is performed in Fusion (although could also be a shortcoming in Windows/Google Drive).
Not ideal, but a workaround would be if the save feature had an option to create a unique (e.g. numbered) file name if there is an existing file. For the issue itself, if the file I/O is doing an open, truncate, write, close, I wonder whether changing the approach to be creating a temporary file, deleting the original and renaming the temporary as the target name would resolve.
As a fix myself I may end up setting up a directory watcher that spots changes and does some file manipulation to spur Drive into action, but it would be great if the file I/O of Fusion resulted in a successful replication on the first attempt.
Fusion
