Okay I don’t know what has happened…
I sliced and printed a model I have used before without issue.
It looks fine on the preview image in the slicer window and file manager.
It seems fine in my modeling too and STL reader.
When I went to print it however it is upside down…no way can in print this way.
I downloaded the G-code and loaded in a g-code viewer and yep it is indeed upside down.
My guess, something has change when the model is handed off to the slicer.
I use the Astroprint cloud version of Slic3r …
I will run it through Astroprint using Cura and my local copy of Slic3r and see what happens.
Darren