Jewelry model complexity issues STL hollow and too large to send to caster

Support Modeling
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I don’t know if there are many people who have experienced Jewelry 3D printers.

I’m leaving a link just in case it helps.
The author of the link post is the person who works at Jewelry.
There are related videos, and I think we can get help.

Every week I get asked if Blender can do 3D print - Support / Tutorials, Tips and Tricks - Blender Artists Community