Allow for circular bed shape
As there are more and more delta style printer with a circular bed shape, it would be nice to list these printer as capable of printing a diameter of ...mm instead of a rectangular box.
For instance if a delta printer had a Ø400mm bed, it would be listed as 283x283mm (I guess), so if an user is asking for a volume based on a rectangle 380x115, it would be rejected.
Jim Heaney commented
I'm surprised that a circular bed isn't already a thing. You've got my vote!