Here's a quick guide on creating a rock in Blender. How to export an obj file and import an obj file into Blender 2.8 Thanks ...

OBJ v/s FBX file format explained FBX is an advanced 3D file format that can hold more 3D data than the OBJ format, including textures, models, joints, animations, camera, lights, skinning, etc.

3D printing can be a fun and productive hobby and skill, but there can be a lot of confusion around the files involved. Here are some you should know about.