How to JOIN and SEPARATE Objects in Blender } - Quick Tips
Daily Blender Tip 266: Merge by distance - BlenderNation
How To Merge Meshes In Blender | The Motion Tree
How to Merge and Separate Objects in Blender | Ex Nihilo Digital
Daily Blender Tip 269: Combine UV's from multiple objects - BlenderNation
GitHub - Philipp-Seifried/Blender-Massive-Boolean: Blender add-on that can combine tons of objects, by running clean up steps after each Boolean operation.
modeling - Merging multiple Objects, removing excess inner geometry for 3d printing 2.82 - Blender Stack Exchange