How to create a vertex from an intersection in Blender? • Blender 3D Architect
mesh - Possible to make Vertices from overlapping Edges? - Blender Stack Exchange
modeling - How can I add vertices to intersection of two edges? - Blender Stack Exchange
modeling - How can I join the geometry of intersecting faces/planes and then remove parts? - Blender Stack Exchange
modeling - How to intersect objects and delete leftover internal planes? - Blender Stack Exchange
Add a tool to create vertex at intersection of edges — Right-Click Select
add edges where objects intersect. - Modeling - Blender Artists Community
modeling - How do I create a vertex at the intersecting point of two intersecting edges without addon or scripts, no faces involved? - Blender Stack Exchange
What's an easy way to create a vertex between two edges? : r/blenderhelp