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The #3DBenchy model usually capsizes in water, but I found that with the right slicer settings, it will actually float upright: https://www.thingiverse.com/thing:6076719
Right slicer Settings as in “correct”? Is the intention of Benchy to float upright if your printer is tuned correctly?
I would say definitely not intended considering the linked page mentions very specific slicing but it’s cool nonetheless!
Benchy was not designed to float. An STL file only defines the external geometry, but if you print it with default slicer settings, the density will be relatively constant throughout, and the resulting center of gravity is too high and too far forward to function as a boat.
In order to make it float, I put more mass at the bottom/rear and less at the top.
I've gotten it to float upright with surface tension before using some custom slicing in Cura. But once the inside gets wet, it no longer stays up.
I basically did 100% on the bottom aft, and 8% everywhere else. Still doesn't float that well.