No suppressed features.
All features are positioned so they will unfold to the flat pattern.
Bend radii are properly defined for material thickness.
Corner reliefs are constructed so the model forms.
Look at the ModelCheck settings to see what it checks for sheetmetal parts.
Most of the things to check for are common sense.
I hate getting or reviewing models with suppressed features and a warning that some cut is outside the geometry.
If the feature isn't needed, delete it!
If the cut is off in space, what is it doing and why do you need it, delete it.
Keeping models clean and simple makes it easier to share them.
