cube with vertices and cylinder with vertices free 3D model | CGTrader
Blender Modeling Walkthrough (3.6.1) - Valve Developer Community
Structure Basics - Making Things Look 3D | discounts and allowances | You can simplify pretty much any organic object into sphere, cylinders and cubes or a combination of these three forms.
Merge cylinder vertices to a quad, by slecting via bpy.ops.mesh.select_non_manifold - Beginning Blender Code and Development - Blender Artists Community
Adding and sizing a cylinder - Blender 3D Printing by Example [Book]
cube to cylinder - YouTube
How to change new file cube to cylinder in blender - YouTube
transforms - modeling cube into cylinder - Blender Stack Exchange