This is a heart vase you can customize. It should be leak-free if you follow the print settings I've suggested.

It has been designed so that the center of mass remains over the center of the vase when filled with water, so it should not tip over.

Prusa

I3 MK3S

No

No

0.2mm

0%

This is designed as a solid object. To print as a vase (that probably won't leak! Test it!).

• Select "Spiral vase" or similar on your slicer

The Spiral Vase mode requires:

• one perimeter
• no top solid layers
• 0% fill density
• no support material
• Detect thin walls disabled

Since there is only one perimeter in this mode, the walls can be quite flexible. To make the them thicker and less flexible, set the "external perimeters" to its maximum thickness, about 200 - 300% of the default thickness (I used 1.2 mm on my prints, where the default is 0.45 mm).