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Lam Wei Lun
4c85d0e80a
An item whose outline fits the printable area could still never be placed: the arrange bed is inset by bed_shrink (1 mm per side) and the item is inflated by its brim width, and the clamp meant to relax that only kicked in with more than 5 mm to spare. An item scaled to fit the print volume was therefore rejected every time. Give the bed margin back where the largest selected item needs it, never below the skirt distance, and cap the inflation at the printable area. When an item comes back UNARRANGED, the GUI parked it on a virtual bed that was never created, moving it a whole plate stride off the plate. Keep the instance where it is instead, and when nothing could be placed at all, skip the plate rebuild so a too large item cannot be re-homed to another plate. Arrange no longer recycles plates: it must not delete a plate the user created, even when the arrange leaves it empty.
OrcaSlicer tests
Building, running and writing tests is documented on the wiki, under How to Test.
Two files here rather than there, because coding agents only read what is in the repository: