Correct way to do opposite of extrude (pushing faces inward) - Modeling - Blender Artists Community
What's new in Blender 2.90? - CG Cookie
What is the fastest way to do a cut extrude / inward extrude? - Blender Stack Exchange
5 BLENDER TOOLS in 5 MINS - EXTRUDE: Manifold(NEW), Individual, Along Normals, To Cursor, & Region
Blender: The Tools and Their Uses - The DarkMod Wiki
Is it possible to extrude an edge-adjacent face inwards without leaving extra faces on the side? : r/blenderhelp
How do I get rid of the extra faces created when extruding inwards? - Blender Stack Exchange
How do I extrude inwards instead of outwards? - Blender Stack Exchange
How to extrude inwards without leaving faces? - Blender Stack Exchange
How to solve Blender's smoothing problems - .: Feeblemind :. Weblog
How to "inside extrude" ? - Modeling - Blender Artists Community
Extrude in Blender: Basics, along curve, circles, manifold and more - Artisticrender.com
7 hidden Blender hacks that will improve your workflow - CG Cookie
Extrude in Blender: Basics, along curve, circles, manifold and more - Artisticrender.com
Extrude — Blender Manual
Edge Extrude Along Normals - better method? : r/blenderhelp
Extruding inwards along edges? - Blender Stack Exchange
Extrude edges (or a curve) using an offset/inset to create a mitred patch of faces? - Blender Stack Exchange
Leftover faces when extruding inwards? - Basics & Interface - Blender Artists Community
How to extrude inwards without leaving faces? - Blender Stack Exchange
Solidify Modifier — Blender Manual
How to Model a Rocket in Blender - RenderGuide.com
How to extrude inwards through face? - Blender Stack Exchange
5 BLENDER TOOLS in 5 MINS - EXTRUDE: Manifold(NEW), Individual, Along Normals, To Cursor, & Region
How do I get rid of the extra faces created when extruding inwards? - Blender Stack Exchange
Noob question about extruding inwards - windows, doors : r/blender
