Introduction to Computer Graphics, Section B.2 -- Blender Modeling
Extrude in Blender: Basics, along curve, circles, manifold and more - Artisticrender.com
Extrude Along Path
Creating perfect circular cutout from a mesh in blender | CGTrader
Extrude
Why can I not extrude circle and how can I fix that? I have no problem with extruding other shapes but circle just moves around as if I pushed "G". : r/blenderhelp
Proposal: Open Edges Extrude Along Normals (Extend Outwards) — Right-Click Select
How to extrude a circle mesh evenly - Modeling - Blender Artists Community
Blender – Extrude faces along their local normals – Oded Maoz Erell's CG Log
How to use Blender to model Holes with Quads — Blender Secrets
tutorial: making circular holes or extrusions in blender - YouTube
Extrude Manifold — Blender Manual
How to extrude a circle mesh evenly - Modeling - Blender Artists Community
Blender Tutorial :Create A Circular Disc With a Central Hole -Updated (3 Steps ) - YouTube
edit mode - How to Extrude Circle Inwards Evenly? - Blender Stack Exchange
Extrude in Blender: Basics, along curve, circles, manifold and more - Artisticrender.com